How to properly fix the profile on the roof. The scheme of fastening the profiled sheet with self-tapping screws on the roof. Calculation for rectangular slopes

The professional flooring is the demanded material applied to different types of works. It can be used to build wall covering, fence or roof. It has many advantages and is available in various types. Its installation on the roof is considered a simple process, so many people prefer to fix the metal profile on the roof on their own. This will save significant cash, as well as fully control the process, so the absence of errors is guaranteed.

Material parameters

Profiled sheet is often used to form roofing, as it produces a coating that does not have to be spent a lot of money, and at the same time it is of high reliability and quality. Serves long enough, so it is effectively used in private housing construction.

Important! Mounting the profiled sheet on the roof is so simple that it is not required to use any specialized tools for this process.

The roof turns out to be quite attractive, but to get a really high-quality and durable coating, you need to strictly follow the correct work technology, as well as take into account numerous rules that allow you to fix the profiled sheet reliably and competently.

The profiled sheet is represented by a special embossed metal sheet, which is produced using the cold-rolled method. It is made of galvanized steel High Quality. A special coating of polymers or polyester is applied to it, which contributes to the formation of material resistance before the corrosion process. The material is produced in the form of sheets, which may have standard or unique individual sizes. The profile is shaped like a regular slate.

Important! The profiled sheet is considered a universal material, as it can be used in various areas of construction.

The material is presented in several forms:

Wall. Sheets of this type are used to finish the facade or create small structures, such as garages or other buildings. They are ideal for forming fences or other similar barriers that do not have any significant dimensions. They can be effectively used for the construction of formwork. Wall corrugated board has different parameters, and its thickness is considered the smallest in comparison with other types.
Carrier. This material is used to create high-quality roofing. It features excellent load-bearing capacity, and is also equipped with reliable stiffeners that increase the strength and resistance of the material to different types impacts.
Universal. Sheets of this type have a low price and optimal parameters. Can be used to create a roof, but only if the roof has a slight slope.

Important! Before direct work, it is required competently, as well as to prepare the base, usually represented by a high-quality wooden crate to which the sheets are attached.

Choice of fasteners

Fastening the profiled sheet to the crate can be carried out using various fasteners, each of which has its own characteristics and parameters. The strength and durability of fixation depends on the competent choice of these items. If fasteners are chosen incorrectly, then the quality of fastening will be at a low level, and this will negatively affect the life of the roof.

Optimal options for commit are:

Important! If you use standard self-tapping screws for work, then these fasteners will not be able to last too long under the existing conditions, and also a small hat will help moisture penetrate into the under-roof space into the existing hole.

High-quality ones have different colors, which allows you to choose the best products for specific sheets that have a specific shade. It is not allowed to fasten the corrugated board with the use of welding or nails. Heat contributes to the violation of the protective layer of the material, therefore, the corrosion process will soon begin on the sheets. The nails, on the other hand, will not be able to withstand strong winds, so there is a possibility that the sheets will be torn off the roof.

Rules for fixing sheets

It is not difficult to properly fix the corrugated board, if you carefully understand the features of this process. The safety of being in a structure with a corrugated roof depends on the quality of the work performed. If the process is carried out with serious irregularities, then this will lead to the fact that the coating will not last too long, and also will not be reliable.

How to fix corrugated board on the roof with self-tapping screws? This process must be carried out in accordance with the rules:

The length of the screws must correspond to the thickness of the profiled sheets, so the fasteners must be selected correctly for the material.

Roofing type corrugated board provides reliable protection of the roof from bad weather and comfort in the house. It is important for this purpose to properly fix the material on the roof, following the right technology and using high-quality fasteners.

The best fasteners for corrugated roofing

Profiled metal sheets are convenient for installation as roofing, as they do not require complex actions. For proper fixation of the coating, it is necessary to choose reliable option fasteners. This is necessary to ensure the resistance of the material to strong wind and snow load, as well as to prevent roof leaks.

If properly installed, corrugated roof decking will last about 30 years.

When laying the coating in each sheet, it is necessary to create holes through which moisture can enter the under-roof space, leading to metal corrosion, mold and fungus. Therefore, during installation, only special fasteners are used, which have a well-thought-out design to eliminate such consequences. To ensure maximum strength and durability of the roof, galvanized self-tapping screws with a wide hat are used, larger than those of a conventional self-tapping screw. Additionally, the masters install rubber seals in the form of rings that protect the structure from moisture ingress under the coating.

Roofing screws provide the highest quality fastening of profiled sheets

Self-tapping screws equipped with a polyurethane or rubber press washer prevent the penetration of moisture in the places of the fastening holes. Element caps can be colored in different colors, which allows you to choose the details to match the roofing. With the help of such fasteners, it is possible to firmly fix sheets of metal without damaging the protective layer, forming cracks and holes. The length of the roofing screws should be in the range from 25 to 250 mm, and the thickness should be 6.3 or 5.5 mm.

The color of the visible part of the roofing screws can be matched to the main coating

Nails, ordinary self-tapping screws, welding and other similar methods should not be used when installing profiled sheets on the roof. This will significantly shorten the life of the coating and lead to leaks.

Video: an overview of the set of roofing screws

How to fix profiled sheets on the roof

Simple installation makes profiled sheets in demand for creating roofing. There are several rules that govern this process. Before work, the following features should be considered:

Preliminary work

Under the metal coating of the roof, moisture accumulates in the form of condensate, which leads to rotting of the structure. Therefore, before creating an external coating, preparatory work should be carried out:

Installation of vapor barrier. A protective layer that prevents the exit of moist air vapor from the room is equipped from the inside under the roof. To do this, the vapor barrier membrane is carefully placed in each corner and fixed with a construction stapler and staples. Mounted on top of the membrane interior decoration premises.
The vapor barrier membrane is attached to the rafters from the side of the room
Roof insulation. A heater is placed above the vapor barrier layer, for example, mineral wool. Slabs of material are tightly laid between the rafters. Sometimes it is more convenient to first lay the insulation, and only then fix the vapor barrier film.
Insulation plates are laid tightly into the joints between the rafters without any fasteners
Counter-lattice device. Outside, a crate and a waterproofing film are mounted on the insulation, which protects the attic space from moisture. A counter-lattice should be installed on top of the waterproofing, providing a ventilation hole through which excess moisture is eliminated.
The waterproofing film is laid along the rafters and fastened with transverse bars of the counter-lattice
Lathing installation. The main crate is attached to the bars laid along the rafters, on which sheets of corrugated board will be laid.
The presence of an additional layer of counter-lattice bars allows you to get a ventilation gap under the metal sheets, which will help remove condensate in the cold season

Methods and features of fastening profiled sheets

The fixing of profiled sheets on the roof is carried out according to the general technology, some points of which can be adjusted depending on the individual characteristics of the roof. The main points of working with corrugated board are expressed as follows:

solid sheets are used to cover the roof, the length of which is approximately 5–10 cm longer than the length of the slope. If it is impossible to order a material of this size, then the elements are joined along the length with an overlap of 100 to 250 mm, depending on the angle of the roof;
when mounted on a roof with a zero or very small slope, the elements are placed with an overlap of 200 mm and using a sealant that prevents moisture from entering under the sheets;
from below and from above, the battens are fastened with profiled sheets in every second wave, and fasteners are installed in the middle of the roof after two or three waves;
in longitudinal joints, self-tapping screws are installed in increments of not more than 50 cm;
the average number of self-tapping screws for every 1 m 2 should be 6–8 pieces.

Step between fastenings of profiled sheets

When installing sheets, it is important to consider not only their location, but also the step between fasteners. This parameter affects the quality of the coating. For example, an excess of self-tapping screws located very often will lead to deformation of the sheets. As a result, it deteriorates appearance roof, its operational characteristics are violated. Therefore, self-tapping screws are screwed only into the lower part of the wave in contact with the crate.

Self-tapping screws are installed strictly perpendicular to the crate at the bottom of the sheet wave

When distributing fasteners along the sheet, it should be taken into account that the maximum pitch between the screws should be 50 cm. At the same time, fasteners can be installed in a checkerboard pattern in the central part of the sheet, observing a distance of 50 cm. edges into each lower wave. At the ends, self-tapping screws must be mounted in each line of the crate to ensure the strength of the coating.

Scheme of installation of corrugated board

In order to avoid errors in work, professional craftsmen it is advised not only to take into account the basic rules, but also to study the layout of the screws on each sheet. This makes it possible to exclude a serious violation of the tightness of the coating as a result of using too many fasteners or screwing in an insufficient number of elements.

Self-tapping screws must not be screwed in too tightly and unevenly

For sheets with a thickness of less than 0.7 mm, a crate with a pitch of about 50 cm is suitable. If a thicker corrugated board is used, then the distance between the rows can be increased to 1 m. This approach allows you to create a reliable foundation and ensure the strength of the roofing. At the same time, they comply general rules fastener location.

At the joints of the sheets, the screws are screwed into each wave, in the upper and lower parts of the slope - through the wave, and in other places at the rate of 8 screws per square meter coatings

Gradual laying of corrugated board

The corrugated board is easy to mount on a simple gable roof, but if the roof has many inclined planes, then the sheets are carefully cut with special scissors. It is strictly forbidden to use a grinder or a saw, as this will lead to the formation of uneven edges and damage to the protective layer of the metal. Next, the following actions are carried out:

The first sheet is laid in the lower region of the end with a pre-calculated protrusion beyond the edge of the eaves (5–10 cm). In this way, the entire lower row is mounted, while the screws are installed along the bottom through the wave, and along the edges - every 30–40 cm.
Sheets of the upper row are fastened with an overlap on the lower one. If the slope angle is less than 15 °, then the joints must be treated with sealant and the sealant fixed. Each sheet element is attached to the extreme rails, to which the sheet reaches, and the remaining fasteners are installed in a checkerboard pattern in the middle. Self-tapping screws are fixed to the bottom of the wave and be sure to observe perpendicularity with respect to the crate.
Sheets of corrugated board are installed from the bottom up, gradually moving from one gable to another
At the ends hip roofs or roofs of complex shapes, the sheets are cut to the required shape and fixed to the crate with self-tapping screws. Upon completion of the work, components are mounted, for example, an end plate, a valley, a dropper, etc.
If a gable overhang is not provided at the end of the roof, then it is closed with an end plate

Video: installation of profiled sheets on the roof

Possible errors when installing profiled sheets on the roof

The arrangement of the roof with profiled sheets is simple and affordable even for inexperienced craftsmen. The metal fixing technology does not require complex actions, however, in the process of work, the basic rules should be taken into account. In this case, the following situations and errors can often occur, which can be easily avoided:

The fastening of profiled sheets is simple, but only careful observance of the technology will ensure the durability and reliability of the roofing under any load.

Profiled sheeting today is one of the best building materials, which is used not only for roofing, but for ceilings, walls, fences. Features of the material allow it to be used as building material for outbuildings, garages. But, as with any construction process, the main thing is to follow the rules of installation. It is important to fasten the corrugated board correctly so that the sheet and its outer coating are not damaged.

Taking into account the height of the wave, the length of the self-tapping screw (L) is selected. It is calculated by the formula: L = L1 + H + L2, where L1 is the profile thread that enters the crate (about 2.5-3 cm), H is the height of the corrugation, L2 is the thickness of the washer and gasket (about 4 mm ).

Crate for corrugated board, what should it be?

In order to properly screw the profiled sheet, you will first have to make a crate of wood, that is, a frame of wooden beams. Particular attention is paid to ensuring that the pitch of the lathing is fully consistent with the type of corrugated board used. The step of the crate also depends on the angle of the roof, the main requirements here are as follows:

at an angle of inclination of the roof slope from 15 degrees, the crate is performed in steps of 35-50 cm;
at an angle of less than 15 degrees and using a C20 profiled sheet, the crate must be installed solid, that is, use a sheet of plywood or OSB for this; Laying of the crate is carried out with an overlap on a size equal to several waves of the profiled sheet;
when using a sheet of brand C35 with the same angle of inclination, the pitch of the crate should be up to 30 cm;
for the brand of profiled sheet C44 and more, the crate step should be from 50 cm.

Additionally, for fastening are used silicone sealants(for a roof slope less than 20 degrees), special rubber pads to match the shape and size of the waves.

Methods for fastening corrugated board

The profiled sheet must be fastened taking into account the purpose of the building:

sheet fastening during execution roofing works;
fastening for protections, wall designs.

To do this, today a large amount of material is produced, specially designed for roofing, the construction of fences and outbuildings, facade and wall decoration, and for the construction of ceilings. The roofing and supporting profiled sheet is considered the most durable, which differs from others not only in height and wave shape, but also in the thickness of the metal.

The fastening itself consists in the fact that the profiled sheet is screwed to the base (batten, fence post) with special self-tapping screws. At the same time, it is necessary to ensure that the fastening is carried out correctly, that is, the self-tapping screws must have a rubber gasket that does not damage the metal, enter the sheet evenly, without tilting, and not tighten too much. It is necessary to screw the fastening elements into the corrugated board correctly: into a wave, it is advisable to use special gaskets. But let's talk about this in more detail.

In order to properly attach a sheet of profiled metal, it is necessary to pay great attention to self-tapping screws. For this, special fasteners with rubber gaskets are used, which are suitable for fixing to the base of wall, roofing, bearing corrugated board. The screw head can have a polymer coating that matches the main sheet, that is, the coating is more decorative and attractive. The rubber gasket under the head prevents damage to the coating that the corrugated board itself has, moisture does not penetrate under it, that is, a reliable protection of the material is created.

The profiled sheet itself during fastening should lie flat, the screws should enter it perpendicularly, no distortions or distortions are allowed. This applies not only to roofing, but also to the moment when a fence is being built from profiled metal. In this case, the self-tapping screws must also be evenly attached to the sheet, without crushing or scratching it.

A correctly screwed self-tapping screw is located in a wave of material that is adjacent to the crate (but not close!) Or to the girders.

To a wooden crate or logs and ordinary self-tapping screws, but for metal logs only fasteners with a drill are used. If a fence is being constructed, then it is permissible to fix the sheets with rivets. Experts recommend not using ordinary aluminum, as they may not withstand wind loads, it is best to purchase steel.

In very rare cases, the installation of corrugated board is allowed to use welding. As a rule, this is done when installing floors or when it is necessary to fix the fence and the gate to it. In this case, all work will have to be carried out carefully, trying not to damage the protective coating of the sheet (galvanized, polymer layer), so that the corrugated board is not subject to corrosion. After completion of all welding work, it is necessary to cover the place where the welding took place with special anti-corrosion compounds to provide protection.

How to calculate self-tapping screws for fasteners?

the perimeter of the entire coverage is calculated (it is also used for the roof, and when a fence is being built);
the result obtained must be divided by the width of the sheet (we take into account exactly how the profiled sheet will lie: if there is a joint, then its physical width is taken, if with an overlap - working);
the difference between the two fastening methods can be up to 10%, so be sure to take into account the rule of laying corrugated board.

We also take into account such a moment that in the places where the ridge is located, it is best to fasten the profiled sheet with a double number of self-tapping screws.

The standard number of hardware (or self-tapping screws, as they are also called), which is necessary for, is 8 pieces per square meter. m, while the calculation is equally suitable for both roofing and facade coatings. The fence is calculated in the same way (if it is hardware that is used, and not rivets, it is recommended to install them more often). The fastening step should be from 50 cm, but again it all depends on the location of the sheet.

When fastening to a fence, one more time is taken into account, such as wind loads in a given region. If it is necessary to install the structure in an area where such loads are large enough, then the step is made smaller, and the number of self-tapping screws increases.

Fastening on the roof of the profiled sheet

When attaching the sheet to the roof, the following sequence is observed:

The sheets are laid out in the required order, the overlap must meet all the requirements, taking into account the slope of the slope. The largest overlap should be about 20 cm, with a small slope, a sealant is additionally used for sheet joints.
All attachment points are marked, after which you can get to work.
They always start from the bottom sheet, the screws are screwed into the wave, that is, into the profile cavity that each corrugated board has.
For the ridge, self-tapping screws with a longer length are used, their number is almost doubled to ensure resistance to various loads and influences.
If a profiled sheet with a small thickness is mounted on the roof, then before laying it is better to use special rubber gaskets that repeat the shape of the profile.
When tightening the screws, it is necessary to control the force in order to prevent too tight fixation, this can damage the corrugated board.

Fastening corrugated board to fences

If a fence is being built using a profiled metal sheet, then the fastening is carried out in a slightly different way. The sheet is fixed to the post and run, often 2-3 rows go for this, which allows for reliable fastening and resistance to wind loads. Fasteners should start from the end, each subsequent sheet is overlapped.

The joints should fall on the support pillars, that is, their step should be calculated in advance. Before screwing in the screws, it is necessary to process the joints with sealants. Hardware is screwed into the fence in the same way as for the roof, it is better to use special self-tapping screws with rubber gaskets for this.

Decking, which is quite often used in construction, is universal. It can also be used in the construction of fences, garages, for laying on the roof. The installation of sheets is quite simple, but the main thing here is to use special self-tapping screws, follow the rules for screwing, and avoid kinks and distortions of the fasteners.

Decking as roofing material everywhere crowds the usual asbestos-cement. This is not surprising - the material is much more practical, cheaper, lighter, easier to install, and simply - more attractive in appearance. If the profiles are chosen correctly, and all installation work carried out in accordance with the technological recommendations of manufacturers, then in terms of reliability, such a roof is in no way inferior to other types of coatings. And some of the shortcomings are more than compensated for by its affordability and the speed of roofing operations.

The advantage is also that any owner of the house can build such a roof, if he has at least a little experience. construction works. Without helpers, of course, it is difficult to manage, but together - the three of us can completely mount the coating in a matter of days. Of course, for this it is necessary to understand the nuances of the main operations - how to make the correct crate and how to properly fix the corrugated board to the roof with self-tapping screws. It is these questions that will be the key ones in this publication.

Briefly - about corrugated board

So, what is corrugated board? This term is commonly understood as profiled metal sheets, most often made from thin (up to 1 mm) sheet steel widely used to create various enclosing structures in various areas of construction. There are also products made of aluminum or even copper, but this is very expensive pleasure, and it is hardly necessary to consider them. Moreover, the principle of performing roofing work does not really depend on the material of manufacture.

Building a fence from corrugated board requires certain skills and experience. If we divide the process of installing a fence from corrugated board into several stages, the most difficult of them should include the installation of foundations and the installation of fence posts. The next steps are much easier to complete.

If the fence posts have already been installed, and the foundations of the fence have gained the necessary strength, you can proceed with the installation of horizontal girders (they are also called lags) for attaching a metal profiled sheet.

The number of rows of horizontal runs is determined by the height of the fence. After all, the greater the height of the fence, the greater wind load will have to withstand it during operation. For a fence with a height of 1.6-1.8 m, it is enough to install logs in two rows, with a higher height, three rows of runs are already needed.

How to fasten a profiled sheet to a fence with self-tapping screws - in places of overlap, the screws are screwed into each wave

Installation of runs must be carried out strictly horizontally. Therefore, when installing them, it is necessary to use a water or laser level. The only difficulty in installing the log is that it is better to attach them to the fence supports using electric welding.

How to fasten corrugated board to a fence?

After installing horizontal runs, you can begin to fasten the profiled sheet to the fence. Before fixing the corrugated board to the fence, it is necessary to mark the installation of profiled sheets.

To do this, at a height of 10-15 cm from the ground level, a thin nylon cord is pulled strictly horizontally between the fence posts. This height is sufficient so that small irregularities in the soil do not interfere with the installation of corrugated board.

It is best to use the fasteners for a corrugated board fence the same as for the installation of corrugated board roofing. Roofing self-tapping screws are made of especially strong steel of the C1022 brand. Their surface has a reliable zinc protective coating, not less than 12.5 microns thick.

Fasteners for a fence from corrugated board - roofing self-tapping screw

In addition, roofing fasteners for metal profiled sheets differ from conventional metal screws with a press washer in the presence of a special sealing gasket made of neoprene rubber. This gasket is necessary to create tightness at the point of attachment of the roofing to the crate of the truss system.

When installing the fence, such tightness at the place where the profile is attached to the guides is not mandatory. But the ingress of moisture under the head of the self-tapping screw can cause premature corrosion of the edges of the hole in the corrugated board.

This can lead to the appearance of rust streaks on the surface of the fence. Even when using roofing screws with rubber washers, it is recommended to treat the edges of the holes in the corrugated board with special agents that prevent edge corrosion.

In addition, unlike conventional metal screws, the heads of roofing screws are painted in the same colors as corrugated board with polymer coated. This makes them completely invisible against the background of the fence.

It is best to install sheets of corrugated board with two people. While one person holds the lower edge of the profiled sheet at the level of the tensioned cord, the second person, using a screwdriver, fixes it to the run in the upper corner. After checking the horizontalness, the corrugated board is fixed in two or three more places.

Before attaching the profiled sheet to the fence over the entire area, an adjacent sheet of corrugated board is installed. It is better to mount it in the same way as roofing- with an overlap in one wave. This will allow you to more accurately set the sheet vertically.

The requirements for how to fasten corrugated board to a fence are the same as for fastening any vertical surfaces from profiled sheet. Self-tapping screws are installed through one wave.

Fastening corrugated board to the fence - installation scheme for self-tapping screws with an overlap

Despite the fact that the tip in the form of a drill allows you to screw them without pre-drilling holes in the corrugated board, it is better not to abuse it. The fact is that a hole in a profiled sheet, the diameter of which is slightly larger than the diameter of the self-tapping screw, allows you to compensate for the linear expansion of the metal during sharp temperature fluctuations.