How to finish roof overhangs. Roofing: the eyes are afraid, but the hands do it. Tools you will need

After completing the voluminous and complex installation of the roof, another important work remains - filing the roof overhangs. Some careless owners ignore this point or do it poorly. This is a necessary process through which a house acquires a designer look. Purely practical functions are also important - the under-roof space is now reliably protected from the wind and ventilation is provided.

Various materials are used for decoration, both those used for other purposes and those created specifically. Each of them has its own installation specifics, which are determined by the properties of the products. For quality work you will need some basic skills and simple tools. Then doing the hemming yourself is quite feasible.

Roof overhangs of a house - design features and functions

The roof eaves are hemmed not only to protect the attic space, but also serves the purpose of decorating the house. The building has clear advantages:

the design acquires a complete appearance;
there is an additional opportunity to regulate the thermal insulation of internal premises;
roof elements are protected from the harmful effects of precipitation.

The eaves overhang is the part of the rafters that protrudes beyond the facade of the building. It has different designs: simple or with extension. The first option is not difficult to perform; strong winds do not cause humming, which suffers from the second option, which is also more difficult to work with. The sheathing is made in such a way that it is possible to install gutters and ventilate the roof.

It is recommended to trim the overhangs after installing the rafters, when the sheathing for the roofing has not yet been nailed. Waterproofing is pre-installed and the roof is insulated. If you plan to finish the walls, it is carried out after so as not to damage the cornices when decorating. They are hemmed by everyone, regardless of the design features: what type of roof, the size of the projections.

Houses have two types of overhangs: side overhangs for all structures and front overhangs. The latter protect the facade; hip roofs do not have them. On a regular gable roof, they are performed on sheathing boards extended beyond the gable. Sometimes they make load-bearing crossbars that are fixed to the rafters. In both cases, the board is hemmed from below.

All sloping roofs have side overhangs. They are formed by rafters, the edge of which protrudes further than the walls of the house. The protrusion depends on the height of the building, the size of the blind area and ranges from 0.5 m to 0.7 m, although there are also narrower ones. In this case, good protection of the walls is required - when it rains and winds, they get very wet.

Correct the situation when the rafters are insufficiently long by installing fillies. The process is quite complicated, and not everyone wants to bother with such work. Therefore, the dimensions of the overhang are determined during the construction of the roof.

At the same time as protection from atmospheric influences, the eaves are designed to provide good natural ventilation of the roofing pie. This is equally important for the attic and cold attic. The air should not encounter obstacles, move between the roof elements and exit through the ridge, otherwise condensation will form. Therefore, sealants and polyurethane foam are not used. The exception is frontal structures performed “deaf”.

Materials for filing cornices - which one to choose

The assortment is very large, each of the types used for finishing overhangs has its own advantages and disadvantages. When installed correctly, they provide moisture protection and ventilation. When purchasing, take into account the appearance and duration of operation. Most materials have other uses in home construction but are capable of serving a function in roof overhangs.

There are also products specially designed for this purpose - soffits. It is easy to work with and does not require complex expensive tools. They are immediately ready for installation; no additional operations are required. Regardless of the material of the spotlights and features, they are installed effortlessly even by beginners. The main difference is the location is not along the wall, but perpendicular. The peculiarity of the design is that it is providedventilation holes. A variety of materials are used for manufacturing:

1. Copper - products made from it are very aesthetic and presentable, but expensive. They are characterized by increased fire resistance and strength.
2. Aluminum - ultra-light, elastic, repairable elements. They are coated with UV-resistant paint, so the saturation is not lost. The decorative effect is low - shades of white and brown.
3. Galvanized soffit is durable, strong, and does not require additional maintenance. It has significant weight, which creates difficulties during installation.
4. Vinyl - inexpensive and most popular material. It is lightweight, beautiful to look at, easy to install, and produces a seamless canvas. The plastic is fire-resistant and can withstand significant loads. Products are produced without ventilation holes, completely perforated or only in the center.

Wooden lining is also widely used for lining overhangs. The ease of installation and good performance characteristics are attractive. The choice of material is carried out taking into account a number of nuances. Pay attention to thickness (at least 2 cm) and strength. The second indicator is humidity. Not suitable with elevated temperature, too dry. Since the products are in the open air, exposed to the atmosphere, care is taken to protect them - they are treated with antiseptics and water-repellent agents.

Edged boards are another material often used to construct eaves overhangs. The characteristics of the wood are taken into account. To achieve optimal humidity, store in the shade in the air for at least a month. In order to maintain aesthetics, products without noticeable defects are selected and processed with a plane before installation. The use of protective compounds is mandatory.

Corrugated sheeting is galvanized steel coated with multi-colored polymers. The panels are cut to the size of the overhang. To ensure ventilation, a gap is left between the cladding and the wall of the building corresponding to the wavelength. The material is not afraid of mechanical damage and temperature changes. The corrugated sheet has increased rigidity and is resistant to wind loads.

For filing overhangs, siding is used, which is used when finishing the facade. The option is acceptable, but there are points that should be taken into account. The plastic is fragile, but it can serve for a long time. Another material is PVC lining. For installation, U-shaped strips are purchased, which are used to trim the edges. The joints are connected with special corners.

All materials must:

reliably protect the eaves of the roof from all kinds of precipitation, frost, wind;
provide ventilation for a multi-layer roof;
be resistant to external influences and durable;
decorate the building structure.

Compliance with all the conditions for the choice of material and installation will make it possible to make overhangs aesthetically pleasing and practical.

Two technologies for finishing protrusions - start with rafter preparation

The options for lining the roof overhangs differ in their design features. If the slopes have a small angle of inclination, installation is carried out along the rafters. Their legs should be at the same level in any case. This will allow you to subsequently install the wind bar perfectly evenly. They are leveled, and if the length is not enough, additional boards are filled - fillies. The ends are processed by making vertical cuts.

Installation of overhang on rafters

Antiseptic and painting are applied to the rafters and finishing material (if necessary) before installation. The outermost board is fixed exactly along the overhang line. The cord is pulled and the rest of the casing is installed along it. The location is chosen perpendicular to the wall or parallel if the material is long.

Box design

The second option involves creating a box. Used on hip roofs and those with a steep slope. The method is used more often and looks more beautiful. Rafters are cut in two directions - horizontal and vertical. If the overhang width is more than 45 cm, an additional board is fixed in the middle. In the future, do-it-yourself hemming looks like this:

the material is treated with an antiseptic and painted;
a board is installed on the rafters below;
1 cm above it, a beam or metal profile is fixed on the wall;
The binder is mounted sequentially, one end is attached to the rail, the other to the board.

The design of the protrusions requires the creation of ventilation holes. If these are not soffits, in which they are provided for by the design, proceed as follows:

retreat from the wall by 2 cm;
create gaps between elements;
install gratings at equal intervals.

The video will help you understand in detail how to hem overhangs with modern materials.

Features of using spotlights

This is a separate group of material that is sold complete with all the parts necessary for installation. It is very easy to prepare the products for installation. When choosing, focus on the following parameters:

1. Dimensions - it is impossible to give definite advice. It all depends on the width of the overhang and the length of the roof span.
2. Color range - represented in a variety of shades. They proceed from the unity of the design style.
3. Presence of perforation. It is not needed for the gable overhang; with partial hemming, cornices are hemmed; with full, it is suitable for projections of any type.

To attach the spotlights, special profiles are used that resemble the letters J or F. One strip is installed on a rail, which is located on the wall of the house, the other - opposite on the front board. Fixed with self-tapping screws. Strict parallelism is observed, so marking is carried out first.

Installation of soffit overhangs

Measure the width of the overhang from the inner end of one profile to another. From the obtained result, subtract 5 mm, which is necessary to compensate for the thermal expansion of the material. Soffit strips are cut. They are bent slightly and inserted into the grooves, additionally secured with screws. The individual panels are connected to each other with locks provided by the design.

One of the possible options is not to use J or F slats on the overhang side, but to immediately screw in the trim elements. Then the ends are covered with an L profile (front strip), which simultaneously serves as a wind visor.

To hem the corners of the cornice, the length of the soffits is gradually reduced. One side is cut at 45°. Connect diagonally with an H profile or two J profiles.

For a high-quality result, a number of requirements are adhered to:

1. Installation is carried out through special holes at an angle of 90°; drilling yourself, except for metal products, is not recommended. This leads to deformation.
2. Self-tapping screws are used for fixation, minimum length is 20 mm. Their caps have a diameter of 8 mm. Do not tighten it tightly, leave a gap of 1 mm so that the soffits do not collapse due to temperature changes.
3. The workpieces are cut with a circular saw, turning it so that the teeth point in the opposite direction. Metal scissors are also used. If only a knife is available, use it to draw a line and break off the panel along it.

Despite the manufacturers' assurances about the possibility of installation in winter, it is better to postpone work in frosts below 15° and wait for warmer weather.

Using lining and edged boards

Of all lumber, these are the most popular. They decorate the ledges of not only wooden houses, but also brick, stone, and concrete ones. The thickness of the board is chosen from 15 to 20 mm. If installed parallel to the wall along the rafters, the width is adjusted to the location. At the same time, it is taken into account that the joints of adjacent rows are not placed on one rafter, but in a checkerboard pattern.

When fastening perpendicularly to the box, blanks of the required length are cut. To save on lining strips, choose parameters that will result in the least amount of waste. In all cases, they are sewn with self-tapping screws, which provide a more reliable fastening than nails. In places where the roof breaks on adjacent walls, parts are cut off on one side at an angle of 45°.

When choosing materials, pay attention to the type of wood. Spruce and larch have excellent performance properties - strength, resistance to rotting. Pine has good performance.

When using other materials: PVC lining, siding, corrugated sheeting, the technology does not differ significantly. One of two options for filing is used - along the rafters or the box. For plastic products you will need installation profiles. Do not forget about ventilation - its presence is mandatory. Arrange in the most suitable way for a particular material; leave gaps or install grilles.

The eaves, or eaves overhang, is the edge of the roof slope that extends beyond the side wall of the house. Hemming the eaves is the final stage of installation of the roofing covering, which is necessary not only to ensure ventilation of the roof and protect the facade from precipitation, but also to give the roof and the entire structure as a whole an aesthetic, complete look. Since the cornice is, in fact, formed by rafters protruding beyond the facade, depending on the location of these rafters, cornices are usually divided into front and side.

The front eaves overhang is designed to protect the facade of the building and represents the side edges of the roof slopes. For an ordinary gable roof, the installation of a front eaves overhang consists of extending the load-bearing beams beyond the façade; Often the front overhang is formed by sheathing boards, which are laid under the roofing material as a vapor barrier. A cornice board is attached to the sheathing, which is then sheathed with corrugated board.

Each sloping roof has a side eaves overhang and is formed by rafters that extend beyond the house. In most buildings, the length of such a projection is 60-70 cm, although sometimes a narrower cornice can be seen. Failure to comply with the standards for the length of the cornice is fraught with the need for additional measures to protect the wall from rain in strong winds, for example, by increasing the length of the rafters due to fillies (pieces of wooden boards with a smaller cross-section compared to the rafter board). The rafters extending beyond the facade are fastened with boards, which are subsequently covered with cladding.

More details about the structure of the cornice are described in this video:

What is the cornice for?

The main task of any eaves overhang is to protect the building from moisture, for example, from water that flows down the roof when it rains or melts snow. Thanks to the eaves, all the water that falls on the roof of the house flows down its slopes and is directed into the gutter or onto the blind area of the building. It is logical that the further the water is removed from the wall of the house, the less it will get wet even in the event of strong wind.

While protecting the roof from atmospheric influences, the cornice, at the same time, should not interfere with the natural ventilation of the under-roof space, which is important both for residential attic floors and for cold roofs. Warm air rising from the ground should pass freely through the eaves and, moving between the vapor barrier and roofing material, exit out through the roof ridge. Thus, when installing and filing the cornice, the use of all kinds of sealants and foams, which contribute to the formation of condensation and thereby lead to wetting of the roofing insulation, is strictly prohibited.

Calculation of the length and width of the cornice

The reliability of protecting the walls of a house from precipitation and moisture depends on how correctly the length and width of the cornice were calculated - in the case of side and front overhangs, respectively. For side eaves overhangs, in most cases 50-60 cm is sufficient, while for front overhangs the width of the eaves can easily be increased to 1 meter. In the case of roofing a house made of corrugated sheets, the following rule applies: the greater the height of the sheet profile, the longer the eaves overhang must be made - this is necessary to ensure that moisture does not get under the roofing material.

Fasteners for cornices

To cover a cornice with a metal profile, you will need three types of fasteners:

Wood screws 100 mm long
Rivets 12x4
Galvanized screws 50 mm long

The maximum distance between galvanized screws for attaching corrugated sheeting to a wooden base is 40 cm. Based on this and knowing the length of the side of the house, it is easy to calculate the required amount of fasteners for attaching corrugated sheeting to the side eaves overhang. The number of wood screws for attaching the base is calculated based on the number of rafters - three screws per rafter.

Required Tools

To line the roof eaves with corrugated sheeting, you will need the following tools:

Construction level for leveling a wooden base for fastening corrugated sheets
A screwdriver is the main tool for attaching the base board to rafter beams and attaching corrugated sheets to the base
Metal shears for cutting profiles
Riveter for fastening plastic additional profiles to corrugated sheets

Installation of roof eaves: instructions

The first stage of covering the cornice with corrugated sheets is preparing the base for attaching the metal profile. A board with a cross section of 100x30 mm is used as such a base, which is attached to the bottom of the rafter beams along the wall and leveled using a level and a stretched cord. If in some places the board does not fit smoothly to the rafter beam, the surface of the beam can be slightly leveled with a chisel, and if, on the contrary, there are gaps between the board and the beam, they can be filled with plywood scraps or a thin plank. Having made sure that the base board fits evenly, proceed to its rigid fastening using wood screws and a screwdriver.

If the angle of inclination of the roof of the house is large, the corrugated sheeting can only be attached in a horizontal plane, and then it will come into contact with the roof slope. However, a more reliable design option is to cover the cornice with corrugated sheeting in two planes: horizontal and vertical. Thus, in addition to the horizontal base board, it is necessary to secure another vertical board perpendicular to it using the same screws.

After installing two base boards, you can proceed to directly covering these bases with corrugated board. But before this, to protect the edges of the corrugated sheet pre-cut into strips from corrosion, it is necessary to attach a plastic final profile of shape L (L-ku) to it. This happens as follows: the L-piece is put on the edge of a strip of corrugated sheeting, then holes with a diameter of 4 mm are drilled in it and the profile, and the L-piece is attached to the profile with rivets. In order for the plastic final profile to lie flat on all strips of the corrugated sheet, the profiles must be joined before attaching it to each subsequent workpiece.

Sheathing the cornice with corrugated sheeting begins from the side (vertical) side. To do this, pre-drill holes in the corrugated sheet for fasteners, and then attach the corrugated sheet to the board with galvanized screws (the use of galvanized fasteners is preferable due to its resistance to corrosion). It is important that all the fastening points of the sheet are located in the “depression” of the profile, and it is better if every second “depression” is subject to fastening.

Having finished covering the vertical boards of the eaves, they begin to install the horizontal part of the covering. Vertical and horizontal strips of corrugated sheets are connected to each other with a decorative metal corner, and before attaching the corner, small pieces of wood or plywood are placed under the waves of the vertical strip of the metal profile every 60-80 cm to ensure future fastening of the brackets for the drain gutter. Like the L, the corner is attached with rivets into pre-drilled holes in the side and bottom profiles.

If it is necessary to join the cornices at the corners of the building, the lower metal profile is cut at an angle of 45 degrees, and the joint line is closed with a plastic connecting additional element (H-coy). The ends of the cornices are also covered with a piece of metal profile.

The process of filing a metal profile on a cornice is demonstrated in the following video:

After completing the construction of the roofing structure and the installation of the covering, it is time to file the roof overhangs, which are sometimes simply called the frame. The appearance of the entire building depends on the method of filing and choice of material. The box under the roof is the final touch that gives the entire structure a finished look.

The design of the box also includes elements of the ventilation system of the under-roof space. Don't forget about fixing the gutters.

To hem overhangs, you can use a variety of materials and a variety of designs.

What is a roof overhang?

An overhang is a structure protruding a certain length beyond the line of the load-bearing walls of a building, the main function of which is to protect the building and its load-bearing structures from snow, rain, and melt water flowing down the roof.

The length of the overhangs is on average 500 - 600 cm, but it can be increased if desired.

Usually, overhangs are created using the rafter system, but sometimes it is not possible to create such overhangs as a continuation of the rafters. In such cases, the so-called forced continuation of the rafter structure is used. The elements forming the elongated rafters are called “fillies”.

Since the gable of a building is also an unprotected part of the house or roof, it also needs protection from the destructive effects of rain and snow. The width of the front overhangs should be 500 mm or more, and such a structure is constructed using cornice-type boards.

The bottom of the overhangs must be sheathed to extend the service life and improve the exterior of the building.

What technologies are used and what to focus on when filing overhangs?

You should start filing when the work on installing the rafters is completely completed and you need to move on to laying the sheathing along the border of the roof covering.

When covering overhangs, several important points must be taken into account.

Before starting work, it is necessary to saw off the ends of the rafters exactly along the same line. The parallelism of this line relative to the adjacent wall of the building must be maintained.

In most cases, sheathing is done with boards. Its visual appeal depends on maintaining equal width in different sections of the wall.

The ends of the rafters are sawed off vertically, while the end part is sewn up in the same way as the entire hem.

After sawing the rafters is completed, the first sheathing board is placed along it in one straight line. In the future, it serves as a guide for completing the rest of the work.

One important point must be taken into account: you can begin external insulation only after completing the process of filing the roof overhangs.

If insulation is done before installing the sheathing, boards will have to be torn off to install high-quality insulation.

Selecting material for cladding overhangs

There are a lot of materials that are designed for lining roof overhangs. Despite their diversity, they are subject to the same requirements.

The material for the lining must provide reliable protection of the eaves of the roof from any precipitation, its insulation, as well as good ventilation of the under-roof space. High-quality lining material retains its original characteristics for a long time.

The most commonly used materials for lining overhangs

Corrugated sheet

It consists of galvanized steel sheets coated with a polymer layer. The polymer is applied mainly for additional protection of galvanized steel, but also performs an indirect function - it provides a variety of colors.

Thanks to galvanized steel, a high level of rigidity of the sheets and resistance of their geometric parameters in relation to thermal and mechanical loads is achieved. The former includes exposure to high temperatures, and the latter – wind pressure.

When choosing corrugated sheeting for lining overhangs, ventilation is ensured due to the presence of a gap that is created by the height of the wave. Panels from corrugated sheeting can be made to the required width, which significantly reduces the time required for their installation, as well as the financial costs of lining.

Soffits

These are plastic-based panels that are produced specifically for lining roof overhangs. The soffit is very easy to use and therefore very popular. In many ways it is similar to siding, but it also has some differences.

Firstly, the thickness of the soffit plastic is much greater; secondly, the material has a special perforation, the purpose of which is to ventilate the under-roof space. Thirdly, the soffit plastic contains special UV stabilizers, which significantly increase its resistance to ultraviolet radiation.

Soffits are very lightweight, making them easy to transport. To install the spotlights, you do not need any special equipment, which allows you to cope with the work yourself, without the help of professional builders.

Since the spotlights are resistant to adverse weather conditions and sudden temperature fluctuations, they can be used at any time of the year and in any weather conditions.

A wide selection of colors allows you to implement the most original design solutions.

Soffit panels are cut to the length of the overhangs. They are installed not along the wall, but perpendicular to it.

Ordinary wooden lining

Since, when used as a lining, the material is used outdoors and is exposed to adverse environmental factors, when choosing it, you must be especially careful about the quality of the wood.

Attention should be paid to such qualities as the thickness of the product (it should not be too thin), the degree of humidity (the lining should not be too dry or too wet).

The finished lining strips are laid very tightly together. In order to ensure ventilation, it is necessary to cut ventilation grilles into the structure every 1.5 meters.

Planed edged boards are the most cost-effective option. Its thickness should be from 17 to 22 mm, the width is selected individually and can range from 50 to 250 mm.

The wood used is from coniferous trees: spruce, pine, larch. Before installation, the boards must be impregnated with antiseptic and waterproof (impregnation, paint, varnish) compounds.

As in the case of using lining, the moisture content of the boards should correspond to the natural humidity of the environment. If you use wood that is too dry or too wet, it will warp over time.

Overhang trim boards are placed parallel to the wall or perpendicular to it. As a rule, a gap of 10-15 mm is maintained between them so that air masses can freely penetrate into the under-roof space and ensure its uniform ventilation.

When positioned perpendicularly, the plank lining is attached on both sides; when positioned parallel, it is attached every meter. If the overhang is wide, then the fastening is made in the middle.

PVC siding

One of the most economical and technologically advanced materials for hemming. Moisture-resistant material is used for overhangs. The kit includes strips intended for covering the edges (in the shape of the letter “P”), corners for fastening planks and joints, and ventilation grilles.

The filing is positioned perpendicular to the wall, since this is much more convenient and economical, taking into account the fact that the siding does not have a sufficient degree of rigidity and may often need to be secured. Cut strips of the required length in 2-4 places are attached to a wooden frame. The number of attachment points depends on the width of the overhangs.

Sheet metal

Steel with a polymer coating, galvanized, copper, aluminum allows you to quickly complete the cladding. The thickness of the metal sheet should be 0.6-0.8 mm.

The length of the sheets can reach 6 m, and their width must correspond to the size of the overhang.

Holes for ventilation are cut into the sheets or perforated areas are inserted during installation.

If the sheets are steel, then the cutting areas must be treated with an anti-corrosion agent or coated with paint. Aluminum and copper do not need to be processed.

When working with metal filing, you must have special equipment for cutting the material.

Wood boards

The advantage of this material is that it is easy to cut. The slabs are available in a waterproof version. Their installation is carried out in large planes by attaching them to wooden beams with screws.

When using wood boards, ventilation holes with grilles will need to be cut into them and covered with paint to give the overhangs an attractive appearance. The rigidity of the boards is quite high. For OSB, 6.3 mm will be enough. The material is attached to the wooden frame every 1-1.2 m.

Some features of installation of the filing and frame for it

As already mentioned, after installing the roof structure, you need to move on to covering the overhangs. There are two main methods of filing.

With the first method, it is carried out directly along the rafters. This option is suitable for roofs with a slight slope or when there is a need to increase the height of the building.

With this method, the lower part of the rafters is located in a single plane. If this condition is not met, then a flat plane can be achieved by using additional boards: they should be overlapped on the rafters.

Then you need to align and screw the first and last strips of sheathing material, then tighten the threads to maintain the level and attach the remaining strips.

When roofing boards converge on both sides, rafter boards are installed on both sides. The usual length of overhangs is 600 mm.

The second method is more popular. All rafters should be trimmed horizontally and vertically. A board is fixed at the bottom of the rafters, and a beam is attached to the wall. It is located 1 cm above the frontal board in order to allow moisture to drain away.

If the overhang width is more than 450 mm, an additional board should be installed in the middle. When the roof slopes converge in one place, the board must be nailed from the corner of the roof to the corner of the building.

Regardless of the cladding method, the roof overhang box is installed in the same way: along the length of the wall along the gable, a board is stuffed onto the sheathing, from which the distance corresponding to the length of the overhangs is measured, after which the board is nailed parallel to the gable wall.

The result is a rigid structure independent of the wall. We must ensure that all fastenings are reliable - with screws, or better yet, with metal plates and corners.

After completing the installation of the frame, you need to start covering.

Cladding with clapboard or board

Since wind, rain, snow, cold air, etc. will penetrate into this place, the fastenings of the overhang sheathing must be very reliable.

The best choice is fastening with screws.

You must use at least two screws at each mounting point.

Along the length of the boards, they are joined in a checkerboard pattern to prevent two joints from being located next to each other. The exception is corners where sawing is done at an angle of 45 degrees (in some cases at a different angle).

The board or lining is treated on both sides with an antiseptic. The composition is applied twice: the first time before installation (both surfaces and ends are treated), and the second time after installation. In this case, it is necessary to cover all fasteners, cutting points, etc. with the composition.

To complete the work, ventilation grilles must be installed. When using linings, they are cut into the box. It's better to do this in advance.

How to install corrugated sheeting?

The filing of overhangs made of this material is carried out in the following sequence:

Sheets of corrugated sheets are screwed along the cornice and wall to the frame, using self-tapping screws;

At the junction points of the wall and the material, a frontal strip, as well as an internal corner, are mounted. The frontal strip is screwed to the frontal board, and the inner corner is screwed to the corrugated sheet;

The outer corner is fastened at the points of external joints of the profiled sheets;

Profiled sheets are screwed along the pediment along the outer edge of the overhangs and along the wall;

After this, the corners and end strip are fastened;

To facilitate the installation process and ensure ventilation, the width of the profiled sheets should be 2 cm less than the width of the overhangs.

Fitting overhangs with soffits

One of the obvious advantages of spotlights is the ease of installation. Even beginners can do it.

Finishing overhangs using soffits consists of the following steps:

the hemming parts are cut so that their length matches the width of the overhangs;

wooden strips are attached to the roof overhangs;

an F- or J-profile is screwed to the bottom of the bar, which should act as a groove;

one edge of the soffit panel is inserted into the groove, and the other is screwed to the rafter beam;

The side screwed to the rafter beam is covered with an L-profile (front strip).

CONCLUSIONS

The main purpose of overhangs is to protect the building from precipitation and melt water.
Finishing the overhangs is the final stage of roof installation.
Sheathing overhangs can be done in two ways.
Materials for filing must provide protection from precipitation, insulation, and ventilation of the under-roof space.
The most common materials for cladding are corrugated sheets, siding, soffits, wooden lining, edged planed boards, metal sheets, and wood boards.
The installation of each cladding material has its own characteristics.

Video instructions on how to properly decorate a roof overhang with soffits

Lining the roof eaves with your own hands allows you to protect the roofing pie from external influences and give the roof an attractive appearance. Currently, there are many cladding options. We will focus on the most popular ones in this article.

Features of the binder

It is recommended to carry out work on covering the roof overhang after installing the rafter structure, but before installing the sheathing for laying the roof covering. Before filing the eaves, the roof waterproofing should be laid and it is advisable to insulate the roof from the attic side. In addition, it should be taken into account that it is preferable to sew up the roof overhang before the external insulation of the walls of the house begins, so as not to damage the wall covering while working with the cornice.

At the first stage of work, the protruding parts of the rafters should be sawed off along one line, which should be parallel to the adjacent wall of the building.

The overhangs of the pitched roof are sewn up in such a way that gutters can be installed and ventilation of the roofing pie can be ensured. For these purposes, various materials and installation technologies can be used.

Selection of materials

Traditionally, roof eaves sheathing is done using edged and planed boards. To make the roof look aesthetically pleasing, you should use boards that are the same in thickness and width. In addition to boards, various materials are widely used today, which should:

provide reliable protection of the eaves of the roof from moisture, frost, and precipitation;
provide the necessary roof ventilation;
be resistant to external influences and durable;
have aesthetic appeal.

Popular materials for arranging eaves overhang include:

lining (wooden and PVC);
soffit (vinyl and aluminum);
corrugated sheeting

Edged and planed boards 1.5-2 cm thick are a practical material for installing sheathing, which makes it possible to ensure high-quality and uniform roof ventilation. To do this, the elements should be stuffed with a gap of 1-1.5 cm.

Wooden lining. This material should be selected with special care: the roof eaves lining is used outdoors, therefore, the lining must be made of high-quality wood of medium humidity and have a sufficiently large thickness - this will avoid warping.

It is recommended to use wooden paneling that has been stored outdoors for at least a month, since its humidity corresponds to the humidity of the environment.

PVC lining. This is an inexpensive and easy-to-install material. Moisture-resistant lining is designed for a long service life. To install this material, you should immediately purchase U-shaped plastic strips for covering the edges and special corners for fastening the joints.

Soffit. This is a special aluminum or plastic panel with which the roof eaves are hemmed. Externally, the soffit resembles siding, but it is made of thicker plastic and is equipped with perforations, which allows you to create the necessary air ventilation under the roof. The advantages of aluminum and plastic soffit include high weather resistance and durability. UV stabilizers are added to plastic for making spotlights.

The soffit panels are cut to the length of the eaves overhang and installed perpendicular to the wall.

Corrugated sheet. Profiled sheets of galvanized steel with colored polymer coating are usually used for lining roofs made of the same material. The corrugated sheet has a fairly high rigidity and is resistant to external influences and extreme temperatures. Corrugated panels are cut according to the size of the eaves overhang. The ventilation gap of such a filing is equal to the wave height of the corrugated sheet.

Cornice sheathing frame

Hemming the roof eaves is done after installing the roof frame and adjusting the protruding edges of the rafters to size. After sawing off the rafter legs, the first sheathing board is installed along the line, which then serves as a guide for work in the next stages. Next, you should cover the overhangs, choosing the appropriate type of structure:

Do-it-yourself roof eaves lining involves creating a roof eaves box. In both versions of the sheathing device, it is performed in the same way: a board is placed on the sheathing along the pediment, and it is required to measure the distance, which should correspond to the width of the overhang. The board is then nailed parallel to the gable wall.

Installation of the binder

Sheathing the eaves of the roof with soffit requires the use of a J-shaped strip, which is secured with screws along the eaves and along the wall. The soffit sheets are mounted between the slats. The length of each panel should be equal to the distance between the mounted strips minus 6 mm for thermal expansion of the material. If the roof overhang exceeds 900 mm, 12 mm should be deducted. The frontal plate is closed with a special frontal strip. The use of soffit and special elements allows you to create a durable, functional and attractive roof overhang.

Before sheathing the roof eaves with edged boards or wooden clapboards, the material cut to size should be impregnated with antiseptic, fire-resistant and water-repellent compounds. This allows you to extend the life of the binder.

The width of the edged board is adjusted depending on the size of the overhang. The elements should be mounted in 10 mm increments, creating ventilation gaps. If the eaves overhang is covered with clapboard, the planks are laid with a tongue-and-groove connection, and special ventilation grilles should be installed every 1.5 meters.

To cover roof overhangs with corrugated sheets, you need to screw pre-cut sheets to the frame parallel to the wall and along the eaves. Self-tapping screws are used as fasteners. The junction of the wall and the sheet material is closed with an internal corner and a front strip. The inner corner should be attached to the profiled sheet, the front strip to the front board. The outer corner is fastened along the external joints of the profiled sheet.

Along the pediment, corrugated sheeting is mounted along the wall, along the outer edge of the roof overhang. Then the corners and end strip are installed. To ensure air access for roof ventilation, the width of the corrugated sheet should be 2 cm less than the width of the overhang. It is important to consider that the lining, made of metal sheets, is prone to corrosion in places where moisture accumulates and its service life is inferior to other options for finishing the eaves overhang.

Do-it-yourself roof eaves, how and with what material to cover it

Do-it-yourself roof eaves lining using popular materials. How to cover the roof eaves with soffits and pvc clapboard. Using corrugated sheets and wood to hem the cornice.

Hemming of roof eaves: options and their features

One of the stages in the construction of any roof, which gives it a finished look, is the filing of its overhangs or cornices, which provide protection to the walls of the building. It can be done in various ways and using various materials, which have their own advantages and disadvantages. Therefore, in this article we will look at what roof eaves lining can be like: options and materials used.

When to trim roof overhangs

There are two possible ways to file the roof eaves: before laying the roofing material and after it.

It is best and most correct to hem the roof overhangs before installing the roofing material, immediately after constructing the wooden base of the roof (rafters, sheathing) and laying the waterproofing material. This is especially true when using modern roofing materials. At this stage, the drainage system brackets are also often attached and the roof ventilation is installed.

Previously, the filing of overhangs was done after the installation of the roofing material and this was the final stage of roof construction. And even now this often happens, especially if the roofing material is asbestos-cement corrugated sheets or, simply put, slate. Sometimes this method is also used when roofing with other, more modern materials, such as metal tiles or corrugated sheets, in cases where there is no means to do both eaves and roofing at the same time, or for other reasons. Sometimes the hemming is carried out after the external insulation of the facade, after applying the reinforcing layer, but before finishing.

Everyone decides which option to choose at their own discretion, depending on the roof design, type of roofing material, circumstances and availability of funds.

Options for lining roof eaves

Currently, there are quite a few options for lining the eaves (overhangs) of the roof, both in terms of the type of material used and the method of its fastening. The following materials can be used for such filing:

Each of these materials has individual properties that determine their advantages and disadvantages when used for lining roof overhangs. In order to choose the best option, let's consider their features in more detail.

Planed board

For filing overhangs, dry planed boards, 10-25 mm thick, treated with an antiseptic are suitable. At the same time, the boards can be laid and secured both along the surface of the walls and perpendicular to them. The first option is most often used. It is convenient to fasten the boards to the sheathing with self-tapping screws using a screwdriver. It's better to work together. To ensure ventilation of the under-roof space, ventilation holes or slots are made in such a lining every 1-1.5 m.

Advantages of hemming boards:

Relatively low cost, especially in regions rich in wood;
Environmentally friendly material;
Simplicity and speed of work on hemming the overhang, which allows you to do it yourself.

Not very presentable appearance;
Boards have more weight than other materials and place a greater load on the sheathing to which they are attached;
Wood, even treated and painted on the outside, can absorb moisture;
Over time, boards can become deformed and twisted;
Wood must be periodically processed and painted.

Lining the roof eaves with wooden clapboard

Wooden lining differs from boards in its smaller thickness and the presence of a longitudinal groove for connecting to each other. For overhangs, it is necessary to use dry lining and treated with an antiseptic. To ensure ventilation of the under-roof space, ventilation grilles are installed in it every 1.5 m. The lining can be mounted parallel or perpendicular to the wall. In the first case, the lining is attached to the sheathing every meter. In the second case, the elements are attached at the edges, and with a wide overhang (more than 0.5 m) also in the middle. Fastening is done using nails or self-tapping screws.

The advantages and disadvantages of wooden lining are almost the same as those of planed boards. But the lining has less thickness and weight. In addition, it has the best appearance and goes well with almost any type of roofing and facades. But it is also more expensive than a board. The cost of high-quality wooden lining is from $4 per 1m2.

Plywood or particleboard

Another option for lining the roof eaves can be moisture-resistant plywood or OSB chipboards. Strips of the required sizes are cut out of sheets of such plywood or particle boards and attached to the prepared sheathing using self-tapping screws.

Hemming with these materials is simple and quick. But on the other hand, moisture-resistant plywood is not such a cheap material: the average market price is from $5, OSB boards are from $3.5. In addition, both plywood and OSB will have to be painted after filing.

Plastic lining

This is another fairly popular budget option for lining the roof eaves.

PVC lining is cut into pieces along the width of the overhang and attached perpendicular to the wall. It has insufficient rigidity, so it is not advisable to lay it along the wall. In addition to the lining itself, for filing the overhang you will need shaped elements - fillets: U-shaped starting, H-shaped connecting, as well as external and internal corners. The fillets are attached to a wooden frame or sheathing using staples (staplers), clamps or small nails. The plastic lining is cut into pieces that are 4-5 mm smaller than the width of the overhang and inserted into the grooves of the fillets. Depending on the width of the overhang, the lining is additionally attached to the wooden frame with staples or clamps in 1-4 places. Since PVC lining does not have perforations, to ventilate the under-roof space, plastic ventilation grilles are installed in it every 1.5 m of the lining. The average cost of plastic lining is small - from $3.5 per 1 m2. Among the disadvantages are the low strength of the material and the tendency to burn out under the influence of UV radiation.

Lining the roof eaves with metal profiles (corrugated sheeting)

Corrugated sheeting or metal profile is a fairly durable material, as it is a specially curved (profiled) steel sheet covered with a protective layer. The latter can be galvanized or with an additional polymer coating. Most often, polymer-coated corrugated sheeting is used, as it not only looks better and can be of almost any color, but is also more durable. The average cost of 1 m 2 of this material is from $7.

The advantage of corrugated sheeting (metal profile), in addition to strength, is that it is laid in large planes (up to 1.2 m), it is light and easy to install. But working with it requires care so as not to damage its protective layer.

Corrugated sheeting for lining the roof eaves can have different ridge heights (from 8 to 20 mm) and sheet thickness - 0.4-0.5 mm. To hem the overhang, in addition to the corrugated sheeting itself, you will also need shaped elements: profiles, strips, corners. The installation of corrugated sheet strips is carried out in them with gaps of 0.5-1.0 cm, taking into account the thermal expansion of the metal. If these gaps are not enough to ensure reliable ventilation of the roof, then special ventilation grilles are installed for this purpose.

Lining roof eaves with soffit

Soffits are essentially siding panels specifically designed for lining roof overhangs. They differ from conventional siding in their greater thickness and resistance to ultraviolet radiation. They can be vinyl or aluminum, unperforated, fully or partially perforated to provide ventilation.

Soffits are much stronger than plastic lining. Their use does not require the installation of ventilation grilles - it is enough to use panels with perforations. They are durable and do not fade in the sun. The disadvantages include the following:

Soffit panels are smaller in size than corrugated sheets;
Relatively high cost - on average from $9 per 1 m

You can even install the soffits yourself, especially if you need to hem the overhang of a simple roof. Due to their rigidity and strength, soffits do not require a special frame for installation. The only exception is complex roofs with curved or multi-level elements.

Additional elements are used to install spotlights:

On the wall side - a U-shaped profile, which is attached directly to the wall, or a J-shaped one, which is attached to a horizontal rail;
From the end of the rafters or wind board - an L-shaped wind strip, which is attached so that its groove is in the same plane with the groove of the J- or U-shaped profile;
To connect the soffits at the corners - an H-shaped connecting profile, which is attached to the supporting rail. Corner joints can be diagonal or at right angles.

Soffit panels should have a length 5-6 mm less than the distance between the grooves into which they will be inserted. In this case, it will be easier to insert them and thus prevent their deformation due to thermal expansion. The hemming elements are fastened with galvanized self-tapping screws and press washers. The panels are connected to each other using locking connections.

Sheet metal filing

This is another option for inexpensive lining of roof eaves. For this, strips of sheet steel with a thickness of 0.5-0.8 mm can be used - galvanized or polymer-coated. Aluminum or copper sheets can also be used, but this is quite expensive.

Strips of metal are attached from below to a wooden frame or sheathing. To ventilate the roof, perforations are made in the metal or ventilation grilles are installed. The places where steel sheets are cut and perforated must be treated with special paint or an anti-corrosion compound. The average price of steel sheet metal is from $4

Hemming of roof eaves: options and their features

What kind of roof eaves lining can there be: options and materials. Features of lining the roof overhang with soffit, corrugated sheets and lining.

How to hem a roof eaves

After installing the roof, it is necessary to carry out work on its cladding. The binder will perform three functions at once:

it will give the house a finished look;
will provide roof ventilation;
will protect the facade.

How to hem a roof eaves

Today we will talk about how to hem a roof eaves and what needs to be used for this.

Types of overhangs

Front overhang

The main function of the front overhang is to protect the facade. Essentially, these are the side edges of the roof slopes; therefore, a hip roof, which has 4 slopes, does not have such edges.

If we are talking about a gable roof (and in most houses this is exactly what it is), then the supporting beams installed on the rafters extend outward. You can also often see an overhang of sheathing boards laid under the roof on top of a vapor barrier. The main cornice board is attached to them, which is subsequently sheathed (more on this later).

Side overhang

Every sloping type roof has such an overhang. It is created by rafters extending beyond the walls of the building. The length of the projection depends on the blind area and the height of the building, but in most cases it ranges from 60 to 70 cm.

Despite the norms, sometimes narrower cornices are found. This can be fixed in two ways:

reliably protect the wall from the wind, since in slanting rain it will get very wet;
installing fillies to increase the length of the rafters is a more labor-intensive procedure that few people want to perform (after all, you will have to open the roof that has already been made).

Therefore, the required length of the cornice should be considered at the design stage.

Along the entire cornice, the rafters are fastened with boards - in the future they need to be covered with facing material.

How to ventilate a roof through a sheathing

As already mentioned, eaves protect the roof and facade of the structure from precipitation. But at the same time, they should not become an obstacle to the natural ventilation of the space under the roof. And this applies not only to attics, but also to ordinary “cold” roofs.

The heated air, rising from below, must freely overcome the eaves, pass between the roof and the vapor barrier and exit through the ridge. That is why during installation of the overhang you cannot use foam or sealant, otherwise condensation will occur and, as a result, the insulation will get wet.

Note! Only the side cornices should be ventilated, while the front ones must be sealed tightly.

About the choice of materials for the overhang

Today there are quite a lot of materials for cornices, each with its own pros and cons. Nevertheless, they all very effectively provide ventilation and protect the roof from moisture. When choosing one or another of the materials, pay attention not only to its appearance, but also to its service life.

Corrugated sheeting

This material is galvanized steel coated with polymer spraying. Corrugated sheeting is resistant to heavy loads, temperature changes, and has suitable rigidity. Between the layer of corrugated sheeting and the surface of the wall, you need to leave a gap that would be equal to the height of the waves of the material.

Soffit lining

A more popular material used in the construction of roof eaves, which is nothing more than siding, but with ventilation holes. Another difference between the material is the use in production of special ultraviolet stabilizers that protect the cornice from the harmful effects of sunlight.

Soffits are divided into several types depending on the material used in manufacturing.

A characteristic feature of copper soffits is durability and presentability, but at the same time high cost. Such soffits are very durable and non-flammable.

A characteristic feature of copper soffits is durability and presentability

Metal soffit is a sheet of high-quality galvanized steel coated with a polymer coating.

Lining made of lining

No matter what new materials appear, even today it is quite common to find overhangs made of real wood. In this case, you need to select the material very carefully, because the cornice will be located on the street and, therefore, exposed to aggressive environmental influences. There is no need to save money and buy thinner lining - try to keep the thickness of the material at least 2 centimeters. The humidity of the lining should be at an average level.

Lining made of lining

Note! A lining that is too wet is absolutely not suitable, because it will definitely “lead”.

The boards need to be nailed two centimeters from the wall to ensure good ventilation.

Methods for filing cornices

You can hem the overhang using one of two available methods:

Methods for filing cornices

An overhang along the rafters is only advisable for roofs with a slight slope. This method is complicated in that as a result the edges of the rafters must form a flat plane. This is not always possible, so the only solution may be small planks, length from the edge of the canopy to the wall, attached to the rafters. To nail them evenly, you first need to pull the twine and align it. For fastening, use iron corners or screws.

A cornice on a wooden frame is perfect for roofs with a significant slope. To construct this box, you need to take a 40 mm thick board and secure it between the rafters and the wall surface. If one edge of the board is attached to the rafter leg, then additional installation of a second board, vertical, will be required.

The box is finished, now you can start attaching the sheathing.

Note! The sheathing should be secured with screws, but not nails - this will provide the necessary rigidity.

Soffit lining technology

The installation procedure consists of the following steps.

First stage. It is necessary to equip the soffits with a pair of special strips in the form of the Latin letters F and L. The first needs to be secured on the side of the cornice, the second - on a special strip attached to the wall. All fastenings are made using self-tapping screws. It is advisable to pre-mark everything so that the planks lie evenly.

Second phase. Then you need to measure the cornice and subtract 6 millimeters from the resulting figure - this will allow you to create a gap to compensate for thermal expansion. Next, you need to cut the soffits into strips of the required length.

Third stage. The soffits need to be slightly bent and inserted into the installed profiles. Self-tapping screws are also used to secure them.

What you need to know when installing soffits

It is undesirable to carry out work at temperatures below 15°C, even though manufacturers insist on the possibility of installation even in winter.
Soffits need to be installed only at an angle of 90°C.
Soffits should be stored only on a flat surface, in stacks of 15-20 pieces.
You should always leave the gap mentioned above.
To cut soffits, you need to use a “circular saw” with reverse teeth (you can also use special metal scissors).
The length of the screws must be at least 3 millimeters.
The step between the fasteners should be a maximum of 40 centimeters.

Corrugated sheeting technology

First stage. First, a block should be nailed to the wall in a horizontal position, strictly at the level of the overhang. In parallel, a second block is attached at the same level, this time along the rafters.

Second phase. Then you need to cut strips of corrugated board (not forgetting about the same thermal expansion) and attach them with self-tapping screws to the bars.

Third stage. The joints are decorated with strips of the outer and inner corners.

Actually, the installation of corrugated board is completed.

Clapboard hemming technology

Scheme of filing an overhang with clapboard

It is advisable to carry out this procedure from below, using a stepladder or scaffolding.

Note! The cornice can be hemmed only after completion of external insulation, installation of moisture insulation and cladding.

First you need to check if all the rafters are the same length and if they are installed parallel to the wall. Then you need to attach the wind boards to them and only then proceed with installation.

First stage. Screw the board to the wall in a vertical position. The bottom edge of the board should be flush with the rafters.

Second phase. Secure the next board between the previous one and the rafters, aligning along the bottom edge. The result will be a base - and you need to install the sheathing on it.

Third stage. The frame is covered with boards. Traditionally, a slight gap should be left between them and the surface. The boards should be smooth, approximately 20 millimeters thick.

Note! To ensure ventilation, it is advisable to install special grilles every one and a half meters.

Although it is worth noting: few builders do this, relying on the fact that wood has the ability to “breathe”.

Conclusion

As a result, I would like to note that upon completion of installation, the installed material must be treated with an antiseptic agent - it will provide additional protection for it. If you follow all the selection and installation instructions given here, the cornice will last a long time and look great.

How to hem a roof eaves with your own hands - step by step guide!

Learn how to hem your roof eaves! Selection of materials for the cornice, methods of hemming, instructions, photos + video.

Sheathing roof overhangs: sheathing options and execution techniques

Protecting your home's roof and making it look attractive are issues that require careful consideration. One of the possible solutions is a neat finishing of the overhangs, which will reliably protect the rafter elements from atmospheric influences and ensure the aesthetics of the roof.

The eaves overhang of the roof of a house is usually called its lower part, protruding beyond the boundaries of the walls. It is designed to protect the walls and foundation area from getting wet during rain.

According to the requirements of SNiP, filing roof overhangs is not considered a mandatory operation. Nevertheless, many experts recommend not to neglect the filing of roof eaves. It will allow us to solve a number of important issues, for example,

when there is a strong wind, rising air currents arise, which, having penetrated under the overhang, tend to tear off the roof, and the roof overhang lining will become an obstacle in their path and will not allow slanting jets of rain to get into the under-roof space;
lining the roof overhang will hide the rafter elements, the releases of the layers of the roofing cake and the roof covering from the attic side, and more.

Finishing the roof eaves is the final stage in its construction, so hemming the roof overhangs is done after

her devices;
insulation and finishing of external walls;
installation of drains.

Types of overhangs

Cornice or side. These are horizontal overhangs that are formed by the lower part of the slope. Ventilation of the space under the roof also passes through them. Having passed through the overhang, the air moves towards the ridge, drying the layers of the roofing cake along the way. Hence the conclusion that it is impossible to close them completely. But it is also extremely undesirable not to sheathe the structure. This means that you need to find a reasonable option on how to hem the roof overhangs so as not to block the access of air under the roof, but yes to birds, insects or rodents.
Pedimental. They are formed by the inclined edges of roof slopes and do not take part in under-roof ventilation. Therefore, the need to finish the roof eaves for gable overhangs is due to other reasons, namely the inclined plane of the structure. It is highly susceptible to the destructive effects of moisture, which is blown by the wind. This is especially dangerous for an attic roof, since the edges of the insulation are unprotected from getting wet. Gable cornices must be completely sheathed. Thus, the lining of the gable roof overhangs will become impenetrable.

How to trim the edges of an overhang

Both gable and eave overhangs have uncovered elements: the ends of the rafter elements and the end part of the sheathing release, respectively, which must be finished before hemming the roof eaves.

The choice of material for finishing the edge of the cornice or its end part depends on the main material of the roof covering. Quite often, manufacturers supply ready-made kits for finishing edges along with the roofing material. The sheathing process itself is performed according to one of the following algorithms.

All protruding rafter elements or fillies are cut in one straight line strictly parallel to the wall, that is, vertically. Then the ends of the rafter legs are connected with a strapping board. A frontal roof board is attached to it, the dimensions of which should allow the ends to be covered: completely or partially with minimal shortfall. It is on this that the drainage gutters will be installed in the future.

The frontal board is made of metal or wood. For roofs made of known types of tiles, such a board is included in the roofing material kit. The front board is attached to the ends of the rafter elements using galvanized nails or self-tapping screws.

Elements of the sheathing that protrude beyond its limits are cut parallel to the wall at the same level. An end board is nailed to them and tied to the end of the roofing beam. If you attach the board in a standard way only to each element of the sheathing, then you will not be able to achieve a sufficient degree of rigidity, so it is recommended to use a T-shaped connection.

To do this, additional elements are hemmed from boards or bars, placing them between the front board and two adjacent battens, starting from the second, in increments of one interval, that is, every second and third are selected.

Binding options

In principle, roof overhangs can be hemmed using any convenient method. But upon closer examination, all of them can be combined into two techniques.

One of the options for filing is directly along the rafter elements. The main requirement in this case is the location of the open ends of the rafter legs in a single plane.

This method is suitable for roofs with a slope of no more than 30˚, the overhang of which does not exceed 0.4–0.5 m.
Hemming strips are stuffed onto the base of wooden parts nailed to the rafters.
You can sheathe the base both lengthwise and crosswise.
Installation begins with the installation and fastening of the initial and last trim strips.
Then a construction thread is pulled between them and, keeping the correct level, the rest are set.
When hemming the corner of two slopes, the planks must be secured to the corner rafter on both sides.

Horizontal roof overhangs are used on steep slopes. Installation of the roof eaves is fairly quick.

A box is knocked down from wooden beams, which is attached to the adjacent wall and the base of the roof, and the wall beam must be positioned 1 cm higher than the beam attached to the lower section of the rafter legs. In this way, the slope necessary for the drainage of water that gets inside the eaves due to the wind is maintained.
To ensure the rigidity of the box structure, fastening the bars with screws is duplicated with additional fasteners on metal plates and corners. Then they begin to file it with some convenient material.

Various materials made of metal, plastic or lumber are suitable for lining the roof eaves.

The most common is considered to be lining the roof overhangs with boards 15–20 mm thick. The width of the material depends on the overhang of the cornice and ranges from 5–25 cm. The aesthetic appearance of the cladding depends on the exact observance of the constant width of the boards.

The undoubted advantage of boards for lining roof overhangs is its ability to provide high-quality ventilation of the under-roof space, since air in this case flows there evenly along the entire perimeter of the roof. The gap between the boards is 1–1.5 cm.

If the boards used for hemming are of sufficient length, they are screwed at several points to prevent deformation.
The boards are joined in a checkerboard order. In this case, it is necessary to leave sufficient distance between the two joints.
The only exception is the corners of hip roofs, where the wooden planks are sawn down when joining, dividing the right angle in half.
All elements are treated twice with antiseptics and fire retardants: before installation and after.

Another popular material is wooden lining. Considering the susceptibility of wood to all sorts of weather vagaries, special requirements are placed on its quality:

the planks should not be thin;
humidity level. The natural humidity of the lining, which has been stored outdoors for at least a month, is considered optimal.

The lining strips are laid tightly, leaving no gaps between them, as in the case of boards. Holes for ventilation are cut out on the finished cladding in 150 cm increments and covered with gratings.

Lining the roof eaves with corrugated sheeting coated with polymers is carried out according to a simple algorithm.

When sheathing cornices with corrugated sheets, sheets of the required size are first prepared. They are screwed to the finished frame parallel to the wall. Special screws are used for fastening.
The joint formed by the wall plane and the corrugated sheet is closed by installing additional elements: a front strip and an internal corner. The corner is attached to the profiled sheet, and the strip, accordingly, to the board. To close the external joints of the corrugated sheet, external corners are used.
The roof gables (photo above) are hemmed along the walls. The planks are attached to the outer edge of the cornice and hidden under the end strip and corners. The sheathing strips should be approximately 2 cm narrower than the width of the overhang. Thus, air intake will occur due to the height of the profile wave.
When installing the roof eaves, the finishing with corrugated sheets can be done in color, choosing the appropriate one from a variety of options.

PVC siding is a fairly affordable and effective option for lining roof eaves. This material often goes on sale in a special package. The plastic panels are supplemented with U-shaped strips necessary for the design of edges, corners, and ventilation grilles. The sheathing is fastened parallel to the edge.

Plastic strips are attached to a wooden frame at two to four points.

Special plastic panels called soffits are produced for lining roof eaves. These panels are thicker than siding and are usually equipped with special perforations through which ventilation of the under-roof space passes. In addition, UV stabilizers have been added to the plastic for spotlights, which provide the material with high resistance to ultraviolet radiation. The soffits for filing are cut along the length of the cornice and installed at right angles to the wall.

Sheathing roof overhangs: sheathing options and execution techniques

To give the house structure completeness, it is necessary to trim the roof overhangs. Suitable materials for this process are lining, board, siding,

Sheathing the roof eaves: how and how to sheathe them

Features of the binder

At the first stage of work, the protruding parts of the rafters should be sawed off along one line, which should be parallel to the adjacent wall of the building.

provide reliable protection of the eaves of the roof from moisture, frost, and precipitation;
provide the necessary roof ventilation;
be resistant to external influences and durable;
have aesthetic appeal.

Popular materials for arranging eaves overhang include:

lining (wooden and PVC);
soffit (vinyl and aluminum);
corrugated sheeting

It is recommended to use wooden paneling that has been stored outdoors for at least a month, since its humidity corresponds to the humidity of the environment.

The soffit panels are cut to the length of the eaves overhang and installed perpendicular to the wall.

Cornice sheathing frame

Sheathing roof overhangs: sheathing options and execution techniques

when there is a strong wind, rising air currents arise, which, having penetrated under the overhang, tend to tear off the roof, and the roof overhang lining will become an obstacle in their path and will not allow slanting jets of rain to get into the under-roof space; lining the roof overhang will hide the rafter elements, the releases of the layers of the roofing cake and the roof covering from the attic side, and more.

Finishing the roof eaves is the final stage in its construction, so hemming the roof overhangs is done after

her devices; insulation and finishing of external walls; installation of drains.

Types of overhangs

Cornice or side. These are horizontal overhangs that are formed by the lower part of the slope. Ventilation of the space under the roof also passes through them. Having passed through the overhang, the air moves towards the ridge, drying the layers of the roofing cake along the way. Hence the conclusion that it is impossible to close them completely. But it is also extremely undesirable not to sheathe the structure. This means that you need to find a reasonable option on how to hem the roof overhangs so as not to block the access of air under the roof, but yes to birds, insects or rodents. Pedimental. They are formed by the inclined edges of roof slopes and do not take part in under-roof ventilation. Therefore, the need to finish the roof eaves for gable overhangs is due to other reasons, namely the inclined plane of the structure. It is highly susceptible to the destructive effects of moisture, which is blown by the wind. This is especially dangerous for an attic roof, since the edges of the insulation are unprotected from getting wet. Gable cornices must be completely sheathed. Thus, the lining of the gable roof overhangs will become impenetrable.

How to trim the edges of an overhang

Both gable and eave overhangs have uncovered elements: the ends of the rafter elements and the end part of the sheathing release, respectively, which must be finished before hemming the roof eaves.

All protruding rafter elements or fillies are cut in one straight line strictly parallel to the wall, that is, vertically. Then the ends of the rafter legs are connected with a strapping board. A frontal roof board is attached to it, the dimensions of which should allow the ends to be covered: completely or partially with minimal shortfall. It is on this that the drainage gutters will be installed in the future.

Elements of the sheathing that protrude beyond its limits are cut parallel to the wall at the same level. An end board is nailed to them and tied to the end of the roofing beam. If you attach the board in a standard way only to each element of the sheathing, then you will not be able to achieve a sufficient degree of rigidity, so it is recommended to use a T-shaped connection.

Binding options

In principle, roof overhangs can be hemmed using any convenient method. But upon closer examination, all of them can be combined into two techniques.

One of the options for filing is directly along the rafter elements. The main requirement in this case is the location of the open ends of the rafter legs in a single plane.

This method is suitable for roofs with a slope of no more than 30˚, the overhang of which does not exceed 0.4–0.5 m. Hemming strips are stuffed onto the base of wooden parts nailed to the rafters. You can sheathe the base both lengthwise and crosswise. Installation begins with the installation and fastening of the initial and last trim strips. Then a construction thread is pulled between them and, keeping the correct level, the rest are set. When hemming the corner of two slopes, the planks must be secured to the corner rafter on both sides.

Horizontal roof overhangs are used on steep slopes. Installation of the roof eaves is fairly quick.

A box is knocked down from wooden beams, which is attached to the adjacent wall and the base of the roof, and the wall beam must be positioned 1 cm higher than the beam attached to the lower section of the rafter legs. In this way, the slope necessary for the drainage of water that gets inside the eaves due to the wind is maintained. To ensure the rigidity of the box structure, fastening the bars with screws is duplicated with additional fasteners on metal plates and corners. Then they begin to file it with some convenient material.

Materials

Various materials made of metal, plastic or lumber are suitable for lining the roof eaves.

The most common is considered to be lining the roof overhangs with boards 15–20 mm thick. The width of the material depends on the overhang of the cornice and ranges from 5–25 cm. The aesthetic appearance of the cladding depends on the exact observance of the constant width of the boards.

If the boards used for hemming are of sufficient length, they are screwed at several points to prevent deformation. The boards are joined in a checkerboard order. In this case, it is necessary to leave sufficient distance between the two joints. The only exception is the corners of hip roofs, where the wooden planks are sawn down when joining, dividing the right angle in half. All elements are treated twice with antiseptics and fire retardants: before installation and after.

Another popular material is wooden lining. Considering the susceptibility of wood to all sorts of weather vagaries, special requirements are placed on its quality:

the planks should not be thin; humidity level. The natural humidity of the lining, which has been stored outdoors for at least a month, is considered optimal.

The lining strips are laid tightly, leaving no gaps between them, as in the case of boards. Holes for ventilation are cut out on the finished cladding in 150 cm increments and covered with gratings.

Lining the roof eaves with corrugated sheeting coated with polymers is carried out according to a simple algorithm.

When sheathing cornices with corrugated sheets, sheets of the required size are first prepared. They are screwed to the finished frame parallel to the wall. Special screws are used for fastening. The joint formed by the wall plane and the corrugated sheet is closed by installing additional elements: a front strip and an internal corner. The corner is attached to the profiled sheet, and the strip, accordingly, to the board. To close the external joints of the corrugated sheet, external corners are used. The roof gables (photo above) are hemmed along the walls. The planks are attached to the outer edge of the cornice and hidden under the end strip and corners. The sheathing strips should be approximately 2 cm narrower than the width of the overhang. Thus, air intake will occur due to the height of the profile wave. When installing the roof eaves, the finishing with corrugated sheets can be done in color, choosing the appropriate one from a variety of options.

PVC siding is a fairly affordable and effective option for lining roof eaves. This material often goes on sale in a special package. The plastic panels are supplemented with U-shaped strips necessary for the design of edges, corners, and ventilation grilles. The sheathing is fastened parallel to the edge.

Plastic strips are attached to a wooden frame at two to four points.

Special plastic panels called soffits are produced for lining roof eaves. These panels are thicker than siding and are usually equipped with special perforations through which ventilation of the under-roof space passes. In addition, UV stabilizers have been added to the plastic for spotlights, which provide the material with high resistance to ultraviolet radiation. The soffits for filing are cut along the length of the cornice and installed at right angles to the wall.

Watch the various options for lining roof eaves in the video

How to arrange reliable and beautiful roof overhangs

Reliable lining of the roof overhang protects the walls of the house from the vicissitudes of the weather. In addition, high-quality ventilation of the under-roof space can be arranged in the filing to ensure high-quality and durable functioning of the roofing pie. Beautifully designed overhangs are a decoration of the house.

How to hem roof overhangs with your own hands

The roof overhang is the extension of the rafter system to a certain distance beyond the walls of the building. In some cases, to lengthen this element, fillies are used - boards that are a continuation of the rafter legs.

The overhang has a purely practical purpose - protecting walls from external factors - rain, hail and snow.

But, in addition to its functional purpose, an overhang can also perform purely aesthetic purposes, being a decoration of the building.

The overhang is lined from below with various materials, forming a structure that encircles the house on all sides. Various materials are used for this:

Galvanized metal sheet.
Metal sheet painted or with a plastic protective coating.
The board is a tongue and groove lining.
Vinyl siding.
Soffits are special products for forming an overhang and ensuring the operation of a natural ventilation system.

There are two types of overhangs:

the pitched overhang is a continuation of the roof slope;

A pitched overhang is formed by extending the roof structure beyond the dimensions of the house to protect it from precipitation

The gable overhang is formed by the projections of the roofing and sheathing at the ends of the building. In some types of roofing it may not be present.

Photo gallery: filing of roof overhangs

Finishing the edges of overhangs

The fundamental document for the design of safe buildings and structures is the Federal Law of November 30, 2009 “Technical Regulations on the Safety of Buildings and Structures.” On its basis, various documents on the creation of overhangs have been developed, including SNiP II-26–76 “Roofs”. The requirements of the document stipulate the rules for constructing overhangs of various structures and the materials used for this.

This set of rules and requirements is constantly being refined and changed due to the appearance of various roofing materials on the market.

Optimal overhang size

As already mentioned, the purpose of overhangs is to protect walls. Therefore, the wider it is, the better it performs its function. But there are also limiting parameters - a wide overhang is subject to increased wind loads, which can weaken it over time, leading to the formation of leaks in the roof.

Therefore, the width of this element is rarely more than one meter. For buildings with one or two floors, the standards provide for an overhang of 60 centimeters, and for a normal drainage system it must be at least 40 centimeters.

Roof overhangs can be made in the same style with other architectural elements of the building, for example, with a canopy over the entrance

Basic methods of filing overhangs

These building design details are arranged in various ways:

Hemming along the rafters. In this case, the material is nailed directly to the rafters from the bottom side at the distance of the covered part, and a front board is nailed to the end of the rafter leg. They are often decorated with openwork slotted carvings and painted in a color contrasting with the walls. In this case, it is necessary to comply with the color scheme of the roofing finish.

The material for lining the rafters must be in harmony with the roofing

Horizontal filing often looks like a decorative box

The soffits always have grilles for ventilation of the under-roof space

A house with unfinished hangings does not look aesthetically pleasing; it sometimes looks like it is unfinished.

How to hem the overhang from below

Various materials are used to form overhangs:

Boards made of coniferous wood - spruce, pine, larch. Such materials are less susceptible to warping. The board used is planed on four sides with a thickness of 20–23 millimeters. Such material is characterized by drying out, and the width of the product can decrease by 2–8%, which leads to the formation of gaps between them. It is not recommended to use material wider than 12 centimeters; it is often subject to warping. To avoid the formation of cracks, the planed board can be overlapped with an overlap of about 10 millimeters.
Lining. Using a tongue and groove board for hemming would be a more practical solution. In this case, there is no need to use strips. The board is padded both in length and width, using additional sheathing. In the second case, you can use the scraps remaining after finishing other surfaces.

When using lining, there is no need to fill the strips

Overhangs covered with siding last a long time and do not require regular maintenance

To sew overhangs, you can choose a profiled sheet of any desired shade

OSB has an original texture that can be used to implement interesting design solutions

Soffits are usually matched to the base color of the roofing system.

Soffits for lining overhangs are made from various materials. The mentioned metal perforated products are used only for curtain rods. They are not used for gables.

Metal soffits can be made, in addition to steel, from copper and rolled aluminum.

Soffits made of plastic are also popular. They are noticeably cheaper and very easy to install. The material for their manufacture is polyvinyl chloride or silicone. The main dimensions are 3 meters long, divided into three parts by width, which is 305 millimeters.

Do-it-yourself cornice filing

This structural element of the building can be performed in several ways:

Hemming along the rafters

This method is most often used on roofs with a slight slope. The work is performed in the following order:

Align the ends of the rafters. This operation must be performed before laying the plastic film. You need to pull the cord between the extreme ends of the rafter legs so that all the ends fall under it. The distance to the wall is determined by the shortest protrusion. It is necessary to check that the distance to the walls on the outer rafters is the same.

The distance to the wall is determined by the shortest projection of the rafter leg

The specified sequence is used when installing boards parallel to the wall. If the hemming is done perpendicularly, using short pieces, you must first secure the support strips. They are installed on the rafters at the junction with the walls and at the ends of the legs. The hemming strips are fastened with self-tapping screws.

After leveling is completed, roofing work can continue, and the filing can be completed after installing the topcoat.

Before making hems along the rafters, their ends must be aligned

Video: how to trim rafters correctly

Framing the overhang on the frame

This method of closing the under-roof space is used for steep roof slopes. To do this, the following operations are performed:

The ends of the rafters are terminated along the cord, as described above.
To form a box-shaped frame, strips of 50x50 millimeter bars are attached to the rafter legs perpendicular to the wall. The second bar is installed vertically along the wall between the first and the rafters.

The frame for covering the overhangs is formed from a 50x50 mm bar

Hemming the overhangs along the frame can be done with an edged board or any other materials

Video: metal filing of overhangs along the frame

Installation of spotlights

With this method of filing overhangs and cornices, additional elements are used, supplied along with the soffits. They are used to form a mount into which the lining parts are inserted one by one. Different manufacturers have different soffit mounting systems. Before starting work, you should carefully read the instructions.

An obligatory element of the lining of eaves overhangs are ventilation holes in them. They are needed to ventilate the under-roof space. If it is not there, condensation from the finishing coating will damage the roofing pie until it is completely destroyed.

Diagram of the arrangement of supporting elements for lining with soffits

For overhangs of any design, there is a single ratio of the ventilation surface. It should not be less than 1:50000, that is, the total area of the ventilation holes in the lining must correspond to the given ratio to the roof area.

It should be noted that we cannot talk about any insulation of overhangs, since a ventilation space is formed along them, and insulation requires tightness.

Video: installation of spotlights

Hemming the roof overhangs is one of the final operations during the construction of a house. This procedure should not be taken lightly, because not only the appearance of the structure, but also its proper functioning largely depends on it. Unreasonable savings on this element can subsequently result in significantly larger unforeseen costs. I wish you success!

Filing roof eaves: Options for rafters, frames - metal profiles, soffit, siding + Photo and Video

When building a house, every stage is important, be it laying the foundation or installing the roof. Lining the roof eaves gives it an attractive appearance, and also serves as protection for the facade and promotes ventilation of the building. The options can be very diverse, from ordinary wooden lining to soffits.

Hemming of the roof overhang is carried out after the installation of rafter structures and before sheathing under the roofing material.

Before directly filing the cornice, it will be necessary to lay waterproofing material along the roof, and it is also recommended to insulate the roof from the attic side.

Protection and ventilation

The main task of the eaves is to protect the roof from precipitation. It also plays a role in natural ventilation, which is a necessary condition in the construction of any buildings. So, accumulations of warm air should come out of the ridge insulation, making its way from the bottom of the building through the eaves ventilation, through the waterproofing and gaps in the roofing material.

No polyurethane foam or sealants are used here. If you create a tightness, this will facilitate the formation of condensation, which in turn will serve as a humidifier for the roofing insulation.

Note: Ventilated cornices are used when lining roof slopes. Blind ones are used for front overhangs.

Roof concept

An overhang is the lower part of the roof protruding beyond the walls of the structure. The overhang plays a protective role for the walls and foundation of the house. It varies in width from 20cm to 1m.

The roof is hemmed after all finishing work has been completed, as well as after insulation and finishing of all external walls of the house. Hemming the cornice is the final stage in construction.

Overhangs can be divided into horizontal or eaves and frontal.

The first type is formed on the lower slope of the roof. The main task of horizontal ones, as mentioned earlier, is to create ventilation. The second is considered an inclined overhang, forming an assembly near the pediment. In the case of frontal walls, they serve as protection from moisture and wind.

Device methods

Hemming of the cornice is carried out upon completion of all installation work on the frame structure and adjustment of the outgoing rafter edges to size.

There are several ways:

Along the rafters;
Horizontal finishing on the frame.

With the first method, it is necessary to make the ends of the rafters at the same level. A thread is stretched between the first and last strips. All subsequent elements are mounted at this level.

The second option is more common. Here the rafters are cut on both sides. Boards are nailed to the bottom of the rafters, and a beam is attached to the wall one centimeter higher than the front board to ensure moisture drainage. If the width of the overhang is over 450 millimeters, then an additional board is attached in the middle.

Materials

Previously, roof eaves were covered with ordinary edged boards. But today materials such as wooden boards, wooden and PVC lining, soffits, PVC siding, metal, and also corrugated sheets are used.

Wood is a natural material, ideal for lining a roof slope. It is recommended to choose softwood with a width of 50-250 mm and a thickness of 17-22 mm. However, wood has the disadvantage of being susceptible to deformation and rotting in wet conditions. To prevent this, special impregnating and protective substances are used.

Note: Wood, like lining, must be kept outdoors before installation.

For ventilation, the boards are not laid tightly, but with small gaps. Wood is quite easy to work with, but you need to have the appropriate tools and skills.

For hemming, wooden lining should be selected taking into account its use in the open air, i.e. the wood should be thick, with average humidity, in order to prevent drying out and warping.

PVC lining is a more inexpensive and easy-to-use material. The advantage here is that it does not need to be further processed, it is already suitable for work.

It is recommended to leave the lining outdoors for about a month before laying it directly. Installation of the lining is carried out with a step width of 1.5 m, between which a grating is installed, because There is no way to make gaps here due to the fastening of the tenon into the groove.

Soffits are available in the form of aluminum, plastic, copper, vinyl or galvanized panels. Externally, this material is similar to siding, but it is made of thicker plastic and is provided with perforations to create ventilation processes. This material is distinguished by practicality, resistance to natural phenomena and a variety of colors.

These panels are cut according to the size of the overhang and attached at an angle of 90 degrees to the wall.

The package includes:

J-profiles have grooves. They are attached along the cornice, and the sheets themselves are located between them. Has many advantages. It does not rot, is not affected by moisture, and is also available in a large assortment. It gives an aesthetic appearance and the installation work for its construction is very simple. After all, there are a huge number of different special devices for the device, corners, profiles.

Profiled steel sheets are called corrugated sheets. It has reliability, high rigidity, solidity, and resistance to external influences and temperature changes. The sheets are cut with a grinder into strips corresponding to the overhang and attached along the wall.

The outer corners are fixed at the outer joints of the sheets. Grilles are provided for ventilation. Profiles range from eight to twenty millimeters in height. To prevent corrosion processes, plastic strips are attached to the edges.

Conclusion

Hemming of eaves is an integral part of any roofing structure. This is excellent protection for your home and gives a beautiful appearance. You just need to decide on the method of attachment and purchase the necessary material. And a huge plus is that today there is a wide variety of options.

How to finish roof overhangs. Roofing: the eyes are afraid, but the hands do it. Tools you will need

Roof overhangs of a house - design features and functions

Materials for filing cornices - which one to choose

Two technologies for finishing protrusions - start with rafter preparation

Features of using spotlights

Using lining and edged boards

What is the cornice for?

Calculation of the length and width of the cornice

Fasteners for cornices

Required Tools

Installation of roof eaves: instructions

What is a roof overhang?

What technologies are used and what to focus on when filing overhangs?

When covering overhangs, several important points must be taken into account.

Selecting material for cladding overhangs

The most commonly used materials for lining overhangs

Some features of installation of the filing and frame for it

Cladding with clapboard or board

How to install corrugated sheeting?

Fitting overhangs with soffits

Features of the binder

Cornice sheathing frame

Hemming of roof eaves: options and their features

When to trim roof overhangs

Options for lining roof eaves

How to hem a roof eaves

Types of overhangs

How to ventilate a roof through a sheathing

About the choice of materials for the overhang

Methods for filing cornices

Soffit lining technology

Corrugated sheeting technology

Clapboard hemming technology

Conclusion

Sheathing roof overhangs: sheathing options and execution techniques

Types of overhangs

How to trim the edges of an overhang

Binding options

Sheathing the roof eaves: how and how to sheathe them

Features of the binder

Cornice sheathing frame

Sheathing roof overhangs: sheathing options and execution techniques

Types of overhangs

How to trim the edges of an overhang

Binding options

Materials

How to arrange reliable and beautiful roof overhangs

How to hem roof overhangs with your own hands

Photo gallery: filing of roof overhangs

Finishing the edges of overhangs

Optimal overhang size

Basic methods of filing overhangs

How to hem the overhang from below

Do-it-yourself cornice filing

Hemming along the rafters

Video: how to trim rafters correctly

Framing the overhang on the frame

Video: metal filing of overhangs along the frame

Installation of spotlights

Video: installation of spotlights

Filing roof eaves: Options for rafters, frames - metal profiles, soffit, siding + Photo and Video

Protection and ventilation

Roof concept

Device methods

Materials

Conclusion

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