How to fix corrugated board. How is the fastening of the corrugated board. Additional elements: what to include in the estimate besides the roofing material

Roofing sheeting is a sheet metal building material. In cross-section, it has a waveform of symmetrical ridges (corrugations) of a trapezoidal or rounded shape, giving lightness and strength to the structure.

The lower part of the profile is often referred to as the sole or bottom flange, and the top is called the ridge or top flange.

They are made of cold-rolled metal products 0.3-1 mm thick with various protective coatings.

In this article, we will look at how to properly screw on the roof and how many roofing screws are required per 1 m2 of corrugated board.

Roofing is considered a decking in which:

• thickness metal not less than 0.7 mm;
• height corrugations not less than 35 mm;
• there is action-resistant coating solar radiation, precipitation and mechanical damage;

For roofing of roofs of residential buildings, professional flooring НС35 and НС44 is used. But in those regions where a large amount of snow falls in winter, H60 or H75 is recommended - they have the side walls of the wave crest reinforced with an additional stiffener, and in the middle of the shelf there is a longitudinal trough for melt water to drain.

Unlike metal roofing, the corrugated board has a uniform profile along the entire length of the section and can fit on pitched roof with a small slope angle - 6-11 °.

• at height profile 35 mm (НС35) and tilt angle up to 15º - up to 0.5 m, more than 15º - 1 m;
• at height profile 60 mm (Н60) and tilt angle from 8º - no more than 3 m;
• at height profile 70 mm (Н75) and an angle of inclination from 8º - no more than 4 m;

NOTE!

Between the battens and waterproofing there must be a ventilation gap... To create it, a counter-lattice is equipped with rafter strips or metal girders attached along the rafters.

What screws should be used to fasten the corrugated board to the roof?

Self-tapping screws for roofing from corrugated board are made of high-carbon steel and covered with high-quality galvanized. They are equipped with a special high-strength washer and a plastic gasket (EPDM), insulating the edges of the hole from water ingress and contact with the screw head. The self-tapping head itself has a wide hex head with a metric M8 size.

When installing the roof use three types of self-tapping screws with a diameter of 4.8 mmdiffering in their purpose:

• for fixing in the bottom shelf (sole) of the profile of the corrugated board to the crate 35 mm long with a thinner tip in the form of a tapered drill and a wide thread pitch;
• for stapling sheets on the top shelf of the comb 20 mm long with a wide drill point and fine thread pitch;
• for attaching ridge strips - from 50 to 80 mm long.

Self-tapping screws for roofing

Consumption of roofing screws per 1 m2 of corrugated board

Usually fastening is done in 0.5 m increments. With sheet size 8 1.1 meters per one square meter there will be 4 screws. But the lower edge of the first row of the roof and the overlap zone of the subsequent rows are recommended to be fixed in each lower flange of the profile.

The edges of the sheets facing the roof gables are recommended to be fastened at intervals of 200-300 mm. Side laps, end and ridge strips also increase the amount of hardware required.

On average, 8 self-tapping screws of all sizes are consumed per 1 m² of roofing sheeting. Approximately four of them are 35 mm long, two are 20 mm long, and two more are 50 mm or more. You should not use these values \u200b\u200bas final, since many screws are discarded during the installation process.

A more accurate calculation depends on overall dimensions sheet, roof slope, metal thickness, and the number of roof slopes.

How to properly fasten the corrugated board to the roof with self-tapping screws

A well-screwed self-tapping screw does not deform the pressure washer in the opposite direction, but at the same time tightly presses the gasket to the metal, leaving no gaps or crevices. The axis of rotation of the screw must be strictly perpendicular to the metal surface. So, let's take a closer look at how to fix the corrugated board on the roof with self-tapping screws:

• How to attach to roof battens? Fastening the first sheet of corrugated board to the crate starts from the left side of the bottom row... It is made with an overhang of 4 cm above the edge of the roof and an allowance of 15 cm for the next row. Fastening at the bottom of the sheet should be done "through the wave" - in each bottom flange (bottom) of the profile in contact with the batten - the strength of the entire roof structure depends on this. To avoid skewing, the sheets should be carefully aligned relative to the cornice.
• The next sheet is laid with a side overlap in one wave (for low-profile sheets - in two waves) onto the previous sheet, so that the edge passes and is fastened with short self-tapping screws with a step of 300 mm along the crest of the wave (this prevents water from flowing). It is also recommended to tighten the fasteners with a deviation of 50 mm towards the overlap for tight joining of the sheets in the lower shelf of the upper sheet.
• The middle part of the sheet is fixed in a checkerboard pattern with a step every two waves, which corresponds to 500 mm.

Laying corrugated board

CAUTION!

Self-tapping screws must be screwed strictly at right angles to the surface. Excessive tightening force can lead to deformation and peeling of the protective coating of the corrugated sheet. It is best to use special screwdrivers for this operation.

1. The second and subsequent rows are laid with an overlap of 10-20 cm on the previous one. Self-tapping screws in the overlap zone are also twisted through one wave. When determining the width of the overlap zone, it should be borne in mind that the higher the ridge of the roof and the larger, the less the overlap is made.
2. The upper edge of the last row of sheets adjacent to the ridge of the roof is fixed through the wave.
3. At the second stage, end and wind strips, chimney aprons, are fixed. At the same time, fastening is performed with self-tapping screws 50-90 mm long and fastening pitch up to 300 mm. If the end plate consists of several additional elements (which is highly undesirable), then an overlap of 100 mm must be observed.
4. The final stage is the installation of the roof ridge. The ridge is a specially shaped profile with two shoulders 100-300 mm wide. Its purpose is to protect the roof from moisture penetration into the under-roof space and impart additional rigidity to the structure.
5. Make sure that the mating edges of the roof slopes have a height difference of no more than 2%. Greater value leads to deformation due to wind and snow weight and the formation of cracks.

Fastening the sheet

Laying the ridge begins from the end, opposite to the prevailing wind. The overlap of the additional elements is made the same as for the end strips. Rain and melt water falls under the ridge through the gaps of the lower shelves of the corrugated board.

Therefore, under the shoulders of the ridge, special sealing gaskets are placed, repeating the shape of the profile. Self-tapping screws up to 80 mm long twist along the lower edge of the skate shoulder with an indentation of 3-4 cm through the upper shelves (crests) waves of corrugated board in a crate.

Fastening the wind bar

It is applied on top of the final rows of sheets and using the "through the wave" method fastened with ridge screws up to 80 mm long to the crate through the upper shelves of Vkontakte

To fasten the corrugated board with self-tapping screws on the roof, it is used special technology, thanks to which the roof can be used flawlessly for up to half a century.

In most cases, the choice of corrugated board for roofing is determined by the versatility of the material. It is characterized by good strength and high resistance to the negative effects of natural phenomena, which makes it possible to obtain a reliable and durable roof. In addition, profiled metal sheets are distinguished by a durable color that does not fade under the influence sun rays... This saves on paint.

Types of self-tapping screws used for fastening profiled sheets

Metal roofing screws are used as fasteners for the corrugated board, they also fasten the roofing metal tile. The choice of fasteners does not depend at all on the type of lathing and the material of its manufacture; in any case, self-tapping screw screws of high quality are used, equipped with sealing rubber elements.

If the installation is carried out with screws not intended for fixing the corrugated board, then the result can be a weakening of the fasteners and a corrosive deposit. Of course, corrosion can be prevented by sealing the holes around the fasteners with sealant.

The design feature of the self-tapping screw is the tip in the form of a drill, which makes it possible to do without preliminary preparation of holes.

The presence of a rubber seal on each screw makes the attachment point completely sealed.

If we talk about dimensions, the most demanded screws are 4.8 * 28 mm, although the manufacturer offers fasteners 19-250 mm long and 4.8-6.3 mm in diameter.

For example, for fastening ridge elements, it is better to use self-tapping screws, the length of which reaches 80 mm. In general, the fastening element should be 3 mm longer than the total sheet thickness, regardless of the scheme of fixing the profiled sheet with self-tapping screws on the roof.

The standard head of self-tapping screws has an optimal height that allows the hardware to hold firmly in the screwdriver bit.

Rules for calculating self-tapping screws

To determine the number of fasteners, two schemes are used, unique and personal.

The unique scheme of fixing the corrugated board with self-tapping screws on the roof allows you to perform calculations faster and easier due to the constancy of the numbers. With an insignificant wind load, 4 self-tapping screws are taken per 1 m 2. This amount is quite enough so that the corrugated sheets do not vibrate. In regions with a predominance strong winds, which will constantly affect the roofing structure, 8 self-tapping screws are placed on one square meter.

For example, you can take the following scheme: the fastening of the corrugated board will be carried out on roof slopes with a total area of \u200b\u200b50 m 2 in a house located in an open, well-ventilated area. Taking into account the strong wind load, in order for the fastening of the metal profile to be sufficiently reliable, it is necessary to take 8 self-tapping screws per square meter of surface. Making the appropriate calculations, the following result is obtained:

50 * 8 \u003d 400 pieces.

When calculating, the required deviation of 5% should be taken into account, therefore, such a number of fasteners will be required for work:

400 + 5% \u003d 420 pieces.

The personal scheme of fastening the profiled sheet involves taking into account the total load on the roof. Features of the lathing, roofing material and the purpose of the roof. In most cases, when attaching corrugated board to a metal crate, the step between the fasteners is 50 cm. Note that the distance between the crate for corrugated board is not constant. When minimum loads from the side, this distance can be increased. Therefore, the calculation is carried out individually for each roof.

Features of installing corrugated board on the roof - diagram

In order to qualitatively perform the installation of corrugated sheets on the roof, it is important not only to be able to choose the right fasteners. You need to know how to properly screw the self-tapping screws into the corrugated board when directly attaching this roofing material. This is very important to obtain a durable and robust design... Let's figure out how to properly fix the profiled sheet on the roof with self-tapping screws so that the mount is reliable and durable.

First, you need to determine exactly what the roof will be used for. After all, the roof attic floor settles down according to a completely different scheme, in contrast to the cold attic space. It is possible that the corrugated board is planned to be used to cover the roof over the garage or any outbuilding (read also: ""). Hence the form roof structure, its area, the composition of the "pie", the amount of material and fasteners depends entirely on the planned use of the roof.

Profiled sheets "H" of certain sizes are most often used as roofing material, and the height and thickness of the wave are selected individually for each object.

In addition, for reliable fastening of the corrugated board on the roof, the distance between the self-tapping screws is selected according to an individual plan.

After determining the required amount of material, you can proceed to direct installation, observing the following rules:

• Begin laying the sheets from the bottom row along the eaves.
• The sheets in the first row should hang slightly from the roof to protect the walls from rain and snow.
• Self-tapping screws are screwed strictly perpendicular to the surface. At the same time, a simple canvas is fastened with self-tapping screws with a rubber gasket, and the installation of the valleys is carried out with hardware with a tin seal.
• It is allowed to pre-connect several sheets to each other and fix the structure with blocks. Such actions somewhat speed up the work.
• To solve the question of how to fix the profiled sheeting, you should know that profiled metal sheets are fixed with self-tapping screws between the waves. But the ridge is fastened on the crest of the wave.

Laying waterproofing and vapor barrier

For the reliability and durability of the roof, it is necessary to install a waterproofing and vapor barrier material.

Waterproofing is laid between the elements of the crate and the corrugated board directly on the insulation (if it is used) to protect the attic space and insulation from moisture. The lack of waterproofing leads to the fact that moisture is not removed from under the roof, but accumulates in the form of condensation on the profiled metal sheets. The result of this is the formation of foci of corrosion and a decrease in the operating period of the roofing material.

The vapor barrier is laid under the insulation and prevents the formation of condensation, which is always formed due to the temperature difference between the outside and inside of the roof.

By functional purpose structure is determined by the number of layers of the roofing cake.

For example, residential buildings require a vapor barrier, insulation, waterproofing and roofing material. For non-residential premises, it is enough to lay a waterproofing material under the corrugated board.

Calculation of the distance and pitch of the sheathing for corrugated board

It is recommended to use wooden bars as a lathing for a roof made of corrugated board above a residential building. The distance between them is determined by the angle of inclination of the slopes and the wave height of the profiled sheet.

In order to choose the right distance between the bars, the step of fixing the profiled sheet on the roof and secure it with high quality, you must adhere to the following recommendations:

• When the slope of the roof slopes is more than 15 0, the distance between the lathing bars can be 35-50 cm.
• If the slopes have an angle of inclination less than 15 0, then it is recommended to use a solid crate. In this case, the sheets of roofing material can have a wave height of at least 20 mm. In addition, we must not forget that the sheets should be laid with an overlap of up to 20 cm.
• If the slope of the slopes does not exceed 15 0, and the height of the sheet profile is 35 mm, then it allows you to make a step between the bars of 30 cm.In this case, the overlap of the material can reach 20 cm.
• On a similar slope, profiled sheets with a wave height of 44 mm can be laid on a crate with a pitch of 50 cm or more.
• When the slopes are tilted 20 0, the sheets are stacked with an overlap of 10-15 cm on the crate with a step of 30-40 cm.
• An insignificant angle of inclination, less than 12 0, requires additional use of sealant at the joints. In exceptional cases, the structure is fixed with metal rivets.

Reasons for leaks with proper installation of corrugated board

Quite often, a situation arises when the fastening of the profiled sheet to the crate with self-tapping screws was carried out according to all the rules, but leaks are found on the roof. This can be caused by incorrect cutting of the sheets.

The fact is that cutting metal profiled sheets is performed with ordinary or electric scissors for metal, and it is better to use an electric jigsaw for oblique cuts.

Cutting points are necessarily processed using a waterproofing sealing compound, which prevents the formation of corrosive processes at the edges of the sheet.

If the corrugated board is fixed on metal purlins, then you must first drill the holes for the fasteners. After installing the fasteners, the remaining space is sealed with sealant.

If you need to move on a roof made of corrugated board, you should use shoes with soft soles to prevent damage to the roofing material.

In case of accidental damage to the protective film of the profiled sheet, an anti-corrosion compound and moisture-resistant paint are used.

Decking today is one of the best building materials, which is used not only for covering the roof, but for floors, 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 comply with the installation rules. It is important to screw the corrugated board correctly so that the sheet and its outer coating are not damaged.

Taking into account the wave height, the length of the self-tapping screw (L) is selected. It is calculated by the formula: L \u003d L1 + H + L2, where L1 is the profile thread that enters the crate (approximately 2.5-3 cm), H is the height of the corrugation, L2 is the thickness of the washer and gasket (about 4 mm ).

Sheathing 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 made of wooden beams... Particular attention is paid to ensuring that the pitch of the lathing fully corresponds to the type of corrugated board used. The step of the lathing also depends on the angle of inclination of the roof, the basic requirements here are as follows:

• at an angle of inclination of the roof slope of 15 degrees, the lathing 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; the laying of the lathing is carried out with an overlap of a size equal to several waves of the profiled sheet;
• when using a sheet of grade C35 with the same angle of inclination, the pitch of the lathing should be up to 30 cm;
• for the brand of profiled sheet C44 and more, the sheathing step should be from 50 cm.

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

Methods for fixing corrugated board

The professional sheet must be attached taking into account the purpose of the building:

• fastening the sheet when performing roofing work;
• fastening for fences, wall structures.

For this, a large amount of material is produced today, specially designed for roofing, the construction of fences and outbuildings, decoration of facades and walls, for the construction of floors. The most durable is the roofing and bearing profiled sheet, 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 (crate, fence post) with special self-tapping screws. In this case, it is necessary to look to ensure that the fastening is carried out correctly, that is, the screws must have a rubber gasket that does not damage the metal, enter the sheet evenly, without tilting, and do not tighten too much. It is necessary to screw the fastening elements into the corrugated board correctly: in a wave, it is advisable to use special gaskets for this. But let's talk about this in more detail.

To properly attach a sheet of profiled metal, it is necessary to pay great attention to the self-tapping screws. For this, special fasteners with rubber gaskets are used, which are suitable for fixing to the base of the wall, roofing, supporting corrugated board. The head of the self-tapping screw can have a polymer coating that matches the base 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, it is created reliable protection material.

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

A properly screwed-in self-tapping screw is in a wave of material, which adjoins the crate (just not close!) Or to the girders.

For wooden lathing or logs and ordinary screws, but for metal logs, only fasteners with a drill are used. If a fence is being built, then fixing the sheets with rivets is permissible. Experts recommend not using ordinary aluminum ones, as they may not withstand wind loads, it is best to purchase steel ones.

In very rare cases, the installation of corrugated board is allowed to use welding. As a rule, this is done when arranging 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 completing all welding work, it is necessary to cover the place where the welding was done with special anti-corrosion compounds to ensure protection.

How to calculate self-tapping screws for fasteners?

• the perimeter of the entire coating is calculated (it is also used for the roof, and when the 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 the joint, then its physical width is taken, if with an overlap - the working one);
• the difference between the two fastening methods can be up to 10%, therefore, the rule for laying corrugated board should be taken into account.

We also take into account such a moment that in the places where the ridge is located, the profiled sheet is best fastened with a double number of 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 roofing and facade coatings. The fence is calculated in the same way (if hardware 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 attaching to the fence, they also take into account such a moment as wind loads in a given region. If it is necessary to install a structure in an area where such loads are large enough, then the step is made less, and the number of screws increases.

Mounting on the roof of the profiled sheet

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

1. 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.
2. All attachment points are marked, after which you can start working.
3. They always start from the bottom sheet, the self-tapping screws are screwed into the wave, that is, into the profile cavity that each corrugated board has.
4. Self-tapping screws with a greater length are used for the ridge, their number is almost doubled to ensure resistance to various loads and influences.
5. 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.
6. 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 the girder, often 2-3 rows go for this, which allows reliable fastening and resistance to wind loads. Fasteners should start from the end, each subsequent sheet is laid with an overlap.

The joints should fall on the supporting pillars, that is, their step should be calculated in advance. Before screwing in the screws, it is necessary to treat the joints with sealants. The hardware is screwed into the fence in the same way as for the roof; it is better to use special screws with rubber gaskets for this.

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

Decking is a popular material used for various types of work. It can be used to erect wall covering, fence or roof. It has many advantages and is available in different types... Its installation on the roof is considered a simple process, so many people prefer to mount the metal profile on the roof on their own. This will save significant money, 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 spend a lot of money, and at the same time it is highly reliable and high quality. Serves long enough, therefore it is effectively used in private housing construction.

Important! It is so easy to fix the corrugated sheet on the roof that you do not need to use any specialized tools for this process.

The roof turns out to be quite attractive, but in order to obtain a really high-quality and durable coating, it is necessary to follow the correct work technology exactly, as well as take into account the numerous rules that allow you to fix the profiled sheet reliably and competently.

Profiled sheet is represented by special embossed metal sheet, which is produced using the cold rolling method. High quality galvanized steel is used to create it. A special coating made of polymers or polyester is applied to it, which contributes to the formation of the material's resistance to the corrosion process. The material is produced in the form of sheets, which can have standard or unique individual sizes... The profile is shaped like a regular slate.

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

The material is presented in several forms:

• Wall. Sheets of this type are used for finishing the facade or creating small structures, for example, garages or other buildings. They are ideal for forming fences or other similar fences that do not have any significant dimensions. They can be effectively used for formwork construction. 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 a quality roof covering. It has an excellent bearing capacity, and is also equipped with reliable stiffeners that increase the strength and resistance of the material to various types of 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 to competently, as well as prepare the basis, which is usually presented of high quality wooden crateto which the sheets are attached.

Choice of fasteners

The fastening of 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 the fasteners are chosen incorrectly, then the quality of the fastening will be at a low level, and this will negatively affect the service life of the roof.

Best 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 a small cap will help moisture penetrate into the under-roof space into the existing hole.

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

Sheet fixation rules

Correctly fixing the corrugated board is not difficult if you carefully understand the features of this process. The safety of being in a structure with a roof made of corrugated board depends on the quality of the work performed. Failure to carry out a grossly flawed process will result in the coating not lasting too long and also not being reliable.

How to fix corrugated board on the roof with self-tapping screws? This process should be carried out taking into account 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.

What do you need to know to fasten the corrugated board?

Thanks to such material as corrugated board, in a fairly short time, you can create a rather attractive and fairly reliable fence, roofing or facade structure.

That is why you should learn more about what to choose fasteners for corrugated board, how the fasteners are calculated and what are the nuances that should be taken into account.

Speaking about the correct fastening of the corrugated board, it is necessary to place special emphasis on the simplicity of this fastening and the minimum set of tools that will be required. The material itself is quite economical. It will take only a minimum of costs in order to cover even large-scale areas.

Methods for fixing this material and fastening elements for corrugated board are selected based on the type of workflow:

• fence finishing;
• installation of the roof.

It is useful to know that roofing sheeting is able to withstand the heaviest loads, because a special reinforced form is used in its manufacture. In this regard, reliable protection of the entire space under the roof and, accordingly, any room inside the structure is provided.

All this has a positive effect on the popularity of profiled sheets that are used for roofing. There are other factors that contribute to a large increase in the popularity of this building material:

• extraordinary convenience and simplicity of the workflow;
• high strength indicators;
• ease of handling materials for construction;
• light weight of the material.

Due to the fact that this material is lightweight, there is no need to strengthen supporting structure before fixing the corrugated board to the roof. This contributes to a significant reduction in the cost of roofing.

Even a person who absolutely does not have any construction skills or special experience in matters related to construction, if desired, can fasten the corrugated board. In addition, this material is quite easy to cut and screw onto most of the existing bases. Even severe frosts cannot prevent installation, which can be considered as an additional advantage.

Items you need:

• several types of self-tapping screws;
• professional flooring;
• clamps;
• welding machine;
• screwdriver;
• sealant;
• jigsaw or scissors for metal.

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Methods for securing profiled sheets

First of all, you should know that the correct screwing of the existing self-tapping screw is quite important. Special self-tapping screws can be used as fasteners for corrugated board of all types (from wall to roofing). If you want to fix the corrugated board more aesthetically, you need to use special self-tapping screws for metal tiles.

During manufacturing, a special polymer coating will be applied to the heads of such self-tapping screws, whose color will need to be matched to the color of the corrugated board that is used.

Thus, the screws will be able to blend in with the general background. Due to the rubber gasket, which is located under the very head of the screws, moisture will not penetrate directly under the profiled sheets at the attachment points themselves. Self-tapping screws must be screwed strictly perpendicular to the sheet surface in such a way that no distortions are allowed.

It is important to note that the most the right way screwing in a self-tapping screw is screwing it into a wave, which will adhere to the girder or will not adjoin closely to the crate.

Profile sheets are attached to the logs made of wood using the most ordinary self-tapping screws, and in the case of attachment to metal logs, it is necessary to use special self-tapping screws, the design of which includes a drill. In some cases, rivets are chosen as fastening the profiled sheets to the facade, roof or fence.

The transverse logs have the same appearance as the profile square pipe, to which the corrugated board will be attached. Such logs are attached to the fence itself using clamps or by electric welding.

When such transverse logs are used in the construction process, this somewhat facilitates the main task, which is associated with fastening the corrugated board.

When a fairly short time is allocated for fixing the corrugated board, welding can be used to fasten the profile sheets. However, during welding, it is necessary to carefully ensure that the protective coating of this material is not too disturbed due to actions high temperatures, and after the completion of the work related to welding, it is imperative to do anti-corrosion treatment of the profile coating.

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How to calculate the required number of self-tapping screws in order to fasten the profiled sheet?

The number of fasteners for corrugated board can be calculated in a variety of ways, based on a variety of factors.

It is possible to divide the total area that will need to be covered by the total area of \u200b\u200bone profiled sheet (in this case, the overlap must be taken into account), and then round off the result that will be obtained to a whole number.

It is possible to simply divide the total perimeter of the projected area by the width of one profile sheet. If this is a fence that joins, for the calculation it is necessary to take the installation width with the obligatory consideration of the overlap. The general indicators of the consumption of profiled sheets may differ slightly (by about 10%). For wall and roof areas, on which the profiled flooring will be fixed, 8 self-tapping screws are traditionally taken per 1 sq. m. However, the number of screws near the ends, slopes and ridge is recommended to be doubled in order to be able to provide high reliability and resistance to existing wind loads.

The step of fixing the corrugated board is 50 cm.

The number of screws required to complete the construction of the fence will depend on the height of the fence being made. In this case, the amount can be selected exclusively empirically.

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How to properly fix the corrugated board on the roof?

You need to know the main steps that must be consistently performed in order to properly fix the corrugated board on the roof of an existing house.

First of all, the profile sheets are laid out in the required order so that the amount of overlap of the profiled sheets depends on the angle of the roof slope that exists (the greater the slope indicators, the less overlap is necessary). The largest overlap is approximately 20 cm and can be selected for a roof slope that does not exceed 15 °. However, when the slope exceeds 30 °, the overlap will automatically decrease to 15 cm.

If the roof slope is critically small (less than 10 °), additional sealing of the sheet floors must be performed.

Next comes the installation of the crate. The size of this element should be selected based on the roof slope angle and the height of the corrugated board wave (the greater the indicator of the wave height and the roof slope angle, the more the pitch should be chosen for the lathing). In addition, these indicators will affect the number of waves that the overlap includes. When the roof has small wave heights or a small slope, the overlap must include at least 2 waves.

When laying each subsequent row, an overlap of 20 cm must be observed.

Some nuances should be taken into account:

• self-tapping screws should be screwed only in the profile cavity of the profiled sheet;
• ridge screws differ from roofing screws in length;
• when manual tightening of self-tapping screws is carried out, the force that is applied should be correctly calculated so as not to damage the insulation layer and prevent loosening.