How to fasten the corrugated board to the roof. Fastening a profiled sheet to metal girders - how and how is it done? Gradual laying of corrugated board

26.11.2018 5667

The building material used in the construction of buildings is corrugated board. It is widely used for fencing, roof and wall masonry. Fixing corrugated board is not difficult, but it is worth considering a few features.

How to choose and what kind of corrugated board is

First of all, why choose corrugated board? It is environmentally friendly, lasts for many years and is very durable.

Pros of corrugated board

• strong material;
• not exposed to weather conditions, does not fade, does not oxidize, does not rust, etc.,
• it does not need to be constantly painted and repaired;
• made of steel, which is coated with zinc, so that it does not corrode;
• looks nice and reliably protects the roof from precipitation.

The most popular types (brands) of corrugated board

• For light overlap, corrugated board with a corrugation height of C8-44 mm is suitable.
• Corrugation HC35-44 mm is a roofing corrugated board, respectively, it is suitable for roofing.
• If a solid roof is needed, the craftsmen choose H-57-114 mm, here the stiffening ribs are reinforced.
• HC44 and HC35 are considered standard solution by roof cover.
• H75 and H60 are perfect for those who live in regions where there are snowier winters and a lot of snow. Such corrugated board is made with ridges on the sides, has stiffeners and a wide chute designed to drain (drain) large volumes of melt or rain water.

Profiled sheeting, which is larger in thickness of 0.7 mm and in height of 35 mm, is made with protection from solar radiation and damage.

self-tapping screws

For laying roofing, fencing and finishing work from corrugated board, you will need high-quality ones. Usually they are made of steel, and coated with zinc on top, carbon is present in their composition. The top of the screw is made in the form of a washer, which looks like a hexagon and is very durable. Also included is a plastic gasket. With the help of such self-tapping screws, the profile sheet is screwed especially securely.

Three uses for 4.8mm diameter self-tapping screws for mounting:

• The sole is fixed using 35 mm self-tapping screws.
• The top and ridges are best fixed with 20 mm self-tapping screws.
• Ridge strips are ideally fastened with self-tapping screws 50-80 mm long.

Here, the degree of load on the screws has already been calculated.

Fastening corrugated board with self-tapping screws

Consider how and how many self-tapping screws are needed to attach the corrugated board.

You will need 4 self-tapping screws, measure 50 cm (the distance between them), if the sheet is 8 / 1.1 m.

If you make an indent of 200-300 mm and then fasten the sheets, the overlap and bottom of the edge are then attached to each shelf, then the sheets will come out on the gables and therefore more self-tapping screws will be required, per 1 m2:

• 4 x 35 mm in length;
• 2 by 20 mm;
• 2 by 50 mm.

Total, 8 pieces.

When buying self-tapping screws, pay attention to their appearance and condition. Sometimes self-tapping screws with marriage can come across, and these are cracks, nicks, twisted threads or washer, etc. The use of such screws is highly discouraged. Indeed, in the future, the corrugated board will crack at the base, and it is not difficult to guess what this will lead to. The roof will start to leak, the material will deteriorate, the reputation of the master too. Therefore, it is better to spend the extra 10 minutes and drive to another store for self-tapping screws.

Installation of corrugated board on wood

Before you start laying the roof from corrugated board on the roof, you need to prepare the base - the crate.

• It is necessary to create insulation from steam, water using a special material.
• The correct zone for ventilation is created (a gap is left).
• After the crate is made and then the corrugated board is installed.

The crate is most often made of planks and timber, initially they are treated with an antiseptic so that they are moisture resistant (do not rot). The board is used in the size of 32/100mm, timber 50/50mm or 40/40mm is the standard.

It is important to correctly adjust the strips, carefully calculate the distance, and then it will be much easier to choose the distance for screwing in the screws.

Counter-lattice - is made for the ventilation gap, it consists of metal or rafters.

Measuring the crate and its manufacture

It all depends on the height of the profile and the slope of the roof:

• Size 35-50 cm is made with a slope of 15⁰ or more.
• A solid crate is made if the slope is less than 15⁰.
• If the slope is 20⁰, then 3-40 cm.
• You can make any design if the slope is less than 12⁰.

To properly make the crate, prepare the material in advance, more is better, no less. Get self-tapping screws for the roof, their diameter is from 4.8-6.3 mm, and the length is from 20-250 mm. The hat on such a self-tapping screw should be with a rubber gasket, it is durable and does not deteriorate due to precipitation.

Sometimes screws are used for fasteners, but for them it is worth buying or making rubber gaskets yourself. But it is best to buy self-tapping screws for work, which are made of steel and coated with zinc, it is much more convenient and reliable to work with them. In addition, they can be matched to the color of the corrugated board!

Further, the screws are screwed in at the joints of the sheets, top and bottom. Approximately 6-9 self-tapping screws go per 1 m2. The technique of screwing in the self-tapping screw is especially important, do not screw in (tighten) too much and do not tighten it, in the first case the rubber gasket will deteriorate, in the second the self-tapping screw may fall out over time (due to wind). In both cases, the corrugated sheet will be subject to leakage.

When laying sheets of corrugated board, carefully make sure that the distance on the lining is the same around the entire perimeter, if it decreases as it rises, then this is not good, but it is acceptable in the most minimal ratios. Find sheets should be on top of each other evenly.

You need to screw the screws straight, without deviations, otherwise they will loosen over time, and all the work will be done in vain. When installing the skate, seal it with tape and fasten it from above, choose correct location, only from above. Starting to install the flooring, consider where it is more convenient to be. Firstly, so as not to injure yourself, and secondly, so as not to spoil the painted surfaces.

If you use rivets to fasten sheets, then the main thing is not to use aluminum ones, you will need a gun with it more convenient and faster to work with.

For work, it is worth using special clothes and shoes without spikes. Place the tools separately, not on corrugated sheets, so as not to damage them.

After 1.5-2.5 months, depending on the season, in summer and spring you can pause up to 2.5 months, in winter and autumn 1.5-2 no more. Lightly tighten the self-tapping screws all over the roof again to secure them firmly. Professionals, before re-tightening, process the joints of the corrugated board with silicone sealant.

Features of working with corrugated board and self-tapping screws

There are usually no particular difficulties when working with corrugated board and self-tapping screws, if you measure correctly, calculate the material, use special tools and clothes, do not overdo it, or vice versa, work without desire.

But, it is worth considering the points that absolutely cannot be done:

• I do not use nails for installation, otherwise the sheets will tear, and they will leak, rust and come off.
• Electric and gas welding are not suitable.
• Use special scissors.
• The grinder also does not fit, the edges are very uneven, ugly.
• Only along, you can cut the corrugated board with your hands.

Fastening of corrugated board for metal

You can use two options for fastening corrugated metal. Some prefer rivets, others self-tapping screws. But, it is worth saying that using rivets, you will need a special tool, you will need to drill holes, carefully nail the rivets. Pull them back mono, but the sheet of corrugated board will deteriorate. That's why the best option self-tapping screws are considered, they are easy and convenient to work with, they can be unscrewed if they are screwed in incorrectly and screwed in again. At the same time, the corrugated board does not deteriorate if you unscrew it carefully.

Rivets are usually used in cases where there is no other choice. More often they are used when working with fences, girders, frames.

Installation of walls is best done with self-tapping screws vertically or horizontally, the sheet is attached to the crate from below and above, per 1m2, 6-8 self-tapping screws will go.

The corrugated board is not thicker than 2 mm, you can not pre-drill, but screw in the self-tapping screw manually or with a screwdriver.

Instructions for fastening corrugated roofing

• To lift sheets of corrugated board, arrange them in an arcuate manner, do not fold a lot at once. It is better to lift two, three sheets on ropes that are located along the edges.
• You can climb the stairs, then you need to lower the steps inward, and drag the sheet up to the roof.
• Then set the sheets (the first with an allowance of 10-15 cm) in width.
• Then fasten as described above.
• Do not forget to fasten the sheet on all sides and in the middle (center).
• Lay out the next row and fasten, joining up to 10 cm.
• Having reached the ridge on one side of the roof, you do not need to continue, go to the other part of the roof.
• Start laying sheets only from below, so that it is convenient to walk on the roof, make a small wooden staircase.
• Having completed all sides, proceed to the ridge, take a galvanized sheet 40-50 cm wide and fasten it.
• Now clean the entire roof of debris and dust, cover with an anti-corrosion agent.
• After a few months, clean the roof of debris and dust, and again go through the anti-corrosion agent along the joints, self-tapping screws (tighten them again).

If finances allow, walk the product over the entire roof, but without fanaticism, within the normal range. Choose corrugated board to your taste and color, and now you know how to install it!

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Profiled sheeting is one of the most used roofing materials; in terms of most performance indicators, it fully meets the requirements of modern manufacturers. Although the market building materials there is a wide choice both in price and in quality and materials of manufacture, it is profiled flooring that is considered the most in demand. Relatively low cost with high manufacturability parameters, reliability and service life - distinctive features such roofs. These parameters are influenced by several facts, among them the correct fastening of the sheets on the roof.

Unfortunately, not all developers pay attention to hardware during the construction of the roof, but in vain. Such frivolity can cause very unpleasant situations that arise already during the operation of the building.

What are the hardware for corrugated board?

Type of self-tapping screw	Technical description and purpose
	According to the international DIN standard, they are made of C1022 grade metal, premium class screws (M) must have a zinc coating thickness of 12–12.5 microns. Self-tapping screws of the standard version (MS) of the version have a zinc coating thickness in the range of 7.7–8.2 microns. The letters are located on the head of the hardware. To improve the appearance of the roof and increase the life of self-tapping screws, it is applied to their surface polymer paint the same parameters as the external coating of profiled sheets. The tip is made of alloyed metal, its diameter is less than the diameter of the self-tapping screw body. Due to this design, the self-tapping screw is firmly held in wooden truss systems, the small diameter of the drilled hole allows the thread to securely hold the roof.
	The exact technical name is a self-tapping screw. Turnkey head, the tip resembles a drill. The diameter of the tip is the same as the diameter of the outer threads. It does not cut into the metal, but is screwed into it. The thread pitch must be less than or equal to the thickness of the metal. This is a very important condition, not a single self-tapping screw can cut threads on its own, it is screwed into the prepared hole and clings to the edges of the metal.

Regardless of the type of thread and the type of crate, there are uniform rules for fixing.

The hardware must enter the wooden or metal crate strictly at right angles. Such requirements are put forward for two reasons: an increase in the strength of fixation and reliable sealing of the inlet. The fact is that if the angle of inclination does not correspond to the norm, then the rubber gasket cannot reliably seal the roof. In one place it is excessively compressed, in the opposite it almost does not touch the profiled sheet.

The clamping force should be in accordance with the manufacturer's recommendations. If the gasket is pinched, then excessive internal stresses arise in it. In this state, the effect of material fatigue quickly appears, the gasket cracks, water enters through the cracks. The amount of water is not large enough to cause problems during indoor areas. But she wets the wooden crate, and under the profiled sheets it dries for a very long time. As a result, the structures rot, rafter system loses its original stability values.

The same problems arise in those cases when the pressing force of the gasket is less than the standard values. Experienced roofers advise using professional screwdrivers during installation, they can be used with great accuracy to adjust the automatic control of the screwing force. But this does not mean that the master no longer controls anything. Self-tapping screws can get into knots, the screwing force increases significantly. Manual finishing is required, otherwise the compression force of the rubber gasket will be insufficient.

During screwing, you need to monitor the applied efforts. There are cases when the hardware got into a crack in the crate or even passed by, this is noticeable by the extraordinary ease of screwing. He does not fulfill his task, does not fix the sheet to the roof. What to do? Do not try to take it out and twist it at an angle in the same hole in the hope of getting onto a solid section of the crate. The danger of that position of the self-tapping screw has already been written above. There is only one optimal way out - leave the old self-tapping screw in the same position, and screw another next to it. There is nothing to worry about if two self-tapping screws are located nearby, it is completely imperceptible from the ground. In addition, during the construction of the roof, you need to be puzzled not so much appearance although it is also important how much the reliability and durability of the roof.

Concerning distances between individual hardware, then it must be adjusted taking into account the thickness of the sheets, the maximum values ​​\u200b\u200band the direction of the winds and the location of the self-tapping screw. General rule- extreme sheets should have increased reliability of fixation, self-tapping screws are often twisted. The same applies to the cornice line.

Prices for various types of screws

self-tapping screws

Step-by-step instructions for fixing profiled sheets on the roof

To facilitate the installation of the drainage system and prevent damage to the edges of the profiled sheets, it is recommended to make a special portable ladder. Its main feature is that the emphasis should not be on the edge of the roof, but on the front wall.

The stairs are easy to prepare.

1. Use the old or make a new ordinary wooden stairs. The length should be approximately 1–1.5 m more than the height of the drain system, due to this the ladder will stand under optimal angle to the building (approximately 70–75°). You don’t need to make a smaller angle, in this position it is inconvenient to work on the stairs. In addition, the load on the bending of the racks increases significantly, it is required to take thick bars. The ladder becomes heavier, it can slip, it is difficult to move it from place to place. And you have to do this very often during roofing.
2. Cut two small boards 20-25mm thick, 10-20cm wide and 30-40cm long. These will be stops against the wall. They should be the same length and fairly strong.
3. Nail the cut boards to the side legs of the stairs. In order to increase the area of ​​\u200b\u200bstops, increase the stability and strength of the stairs, fasten the ends of the stubborn legs together with any board. Check the stability of the structure. While working at the top, the master pays attention only to his actions and does not control the position of the stairs. If it is unstable, then emergencies can arise.

Step 1. Count the number of profiled sheets and purchase additional elements.

The number and dimensions of the sheets are determined by the sales representatives of the manufacturers, they have special programs, accurately and quickly performing all calculations. Developers only need to measure the dimensions of the slopes, indicate the type of roof (warm or ordinary) and the parameters of the profiled sheets. The program defines linear dimensions coatings, the number of self-tapping screws, wind and cornice strips, drips, ridge elements, materials for wind and vapor protection. This greatly simplifies the preparatory calculations and eliminates the possibility of error. At home, you can only find out the approximate amount of materials, the data will be useful to determine the approximate cost of roofing. For your information.

If you plan to involve professional roofers, then their services make up at least 75% of the cost of all materials. Based on this, they calculate the price square meter. Further, a multiplying factor is used, depending on the complexity of the roof.

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 of 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 a very expensive pleasure, and there is hardly any need to consider them. Moreover, the principle of implementation roofing works It doesn't really depend on the material of manufacture.

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 roof that does not have to be spent a lot of money, and at the same time it is different 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. High quality galvanized steel is used for its creation. 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. Has a beautiful 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 basis, which is usually represented by high-quality wooden crate to which 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. Nails will not be able to withstand the impact 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.

Building a house is a very costly undertaking. One way to cut costs is to do the work yourself. Of course, not all stages of construction can be carried out independently, many of them require the use of special tools or construction equipment. But such work as laying roofing can be carried out without the involvement of specialists. Consider how the corrugated board is fastened to the roof.

Decking is a widely known material, it is used for a variety of purposes, from the construction of fences to the construction of floors. Used corrugated board and for laying on the roof. This roof design option is chosen by many private developers, since the corrugated board has quite affordable price and fairly easy to install.

But in order for the assembled corrugated roofing to last for a long time, you need to know the rules for handling this material. Consider how the fastening of the roofing corrugated board should be carried out, as well as the fastening of the shaped elements used in the equipment of the main roofing units.

Crate preparation

Sheet corrugated board is laid on a pre-assembled crate. It is very important to mount this coating correctly so that the sheets lie flat and the fastening is reliable.

The design of the crate depends on the type of corrugated board used, namely on the height of the profile, as well as on the angle at which the slopes are located on this roof. The more gentle slopes and the lower the height of the profile of the crate, the smaller should be the spacing of the elements in the crate.

So, when laying corrugated board with a profile height of 20 mm on slopes with a slope of less than 15 degrees, it is recommended to build a solid flooring. For this it is convenient to use sheet material, for example, multilayer moisture resistant plywood. But it is possible to assemble solid flooring from boards, they are laid with a gap of 1 mm to prevent subsequent deformation of the coating due to changes in humidity.

When laying on the roof of the same form of corrugated board with a profile height of 32 mm, a grating is built with a distance between the elements of 30 cm. When using a material with a profile height of 44 mm, the spacing of the elements in the crate increases to 50 cm.

The thickness of the elements of the crate is chosen from the considerations that you will have to walk on the roof during installation and subsequent use. Therefore, the structure must be able to support the weight of an adult.

Advice! As a rule, boards with a thickness of 32 mm are used for the device of the crate, and a bar with a section of 60 mm can also be used.

Methods and rules for fastening sheets of material

First of all, the scheme of fastening the corrugated board on the roof must be determined. So, on a gable roof, it is advisable to lay the sheets in one row, ordering sheets of material along the length equal to the length of the slopes, taking into account the width of the cornice overhang.

Advice! If the roof has a complex shape, then you will have to measure each slope separately and, in accordance with the results obtained, order sheets of different lengths.

However, single-row stacking is not always possible. If the roof slopes are long, then it is more convenient to fasten the sheets of corrugated board in two rows, joining them along the length. At the place where the sheets are joined, the material is laid with an overlap of 10 to 25 cm wide, depending on the slope of the slope.

With a width, the sheets are also stacked with overlaps. On gentle slopes with a slope of up to 15 degrees, the width of the overlap should be two waves; on steeper slopes, the material is laid with an overlap of one wave wide.

Hardware for fixing sheets

When carrying out roofing work, the corrugated board is fastened with self-tapping screws. Galvanized steel screws with hexagonal heads and elastic seals must be used.

The gasket is necessary to seal the attachment point, since when the screw is screwed in, the integrity of the material is violated. The end of the roofing screws is made in the form of a drill, so before screwing in the hardware, it will not be necessary to drill holes with a drill.

Advice! So that when fixing the corrugated board with self-tapping screws on the roof, the work can be done more accurately, it is recommended to pre-mark the attachment points.

The heads of roofing screws are usually painted in the same colors as the corrugated board. By choosing fasteners of a suitable color, you can make the fastening points almost invisible.

If the fastening of the corrugated board to the crate is always carried out with self-tapping screws, then the sheets in the places of overlap can be fastened both with self-tapping screws and combined rivets 4-6.5 mm long.

To install rivets, use a special tool - a rivet gun. To install rivets, it is necessary to pre-drill holes in the material, and the diameter of the holes should be 0.1 mm larger than the diameter of the rivet.

The location of the screws when attaching the sheet

What is the scheme for fastening corrugated board with self-tapping screws? Recommended:

• When fastening along the top and bottom edge of the sheet, place screws in each profile depression.
• When fastening along a longitudinal joint, it is necessary to place self-tapping screws with a step of no more than 50 cm.
• To achieve a better fit of the sheets at the overlap, it is required to place the fastening points with an offset of 5 mm from the center line. At the top sheet, the displacement is made towards the formed joint, and at the bottom - in the opposite direction.
• In the central part of the sheet, the screws should be staggered, screwing them through one wave of the profile.

Fastening of additional elements

• Cornice strips are installed before laying sheets. They are fixed with self-tapping screws, positioned in increments of 30 cm.

• Internal corners. These are the most vulnerable nodes of the roof, therefore, when arranging them, internal and external extensions are used. Prior to the installation of the sheets, the lower valley strip is laid, which is fastened with self-tapping screws with a screw pitch of 50 cm. Sealant is placed under the outer sides of the strip. After laying the sheets of corrugated board at the junction of the main coating and the valley plank, the outer planks are screwed.
• Skate elements. They are installed at the junction of the slope cover. Fasten with long self-tapping screws, screwing them into the profile increase comb.

The main mistakes that beginners make

When fastening corrugated board on the roof, novice craftsmen often make mistakes. The most common of them:

• Fastening sheets of corrugated board with nails. The coating mounted in this way will not withstand even medium wind loads.
• Cutting sheets with abrasive wheels or gas burners. This cutting method destroys the polymer and zinc coating of the sheets and the material begins to quickly rust.
• When screwing in screws, chips are formed. If it is not immediately removed, then the coating will soon appear rust spots. It is recommended to use a brush with soft bristles to remove chips.

So, the correct fastening of the corrugated board on the roof will increase the reliability of the coating. A well-fixed material can withstand various climatic influences, including strong wind loads.