What is a metal profile. Types of metal profiles for use as roofing and wall coverings. Plastisol - saves from mechanical damage

How expedient is the use of metal profiles in the construction? Is this material really as reliable as the reviews and promotional articles make it out to be?

In many ways, the answers to these questions depend on how correctly the type of metal profile is chosen, whether its characteristics correspond to the tasks being solved by the builders.

This technology allows the material to acquire additional stiffeners., and therefore significantly increase the strength. In order to visually understand this dependence, you can try to bend in turn a sheet of corrugated cardboard from which packing boxes are made, and a sheet of ordinary cardboard with the same thickness. In this case, we are not talking about the total thickness of the corrugated cardboard, but about the thickness of the sheet that has undergone corrugation.

The strength characteristics depend on the height and pitch of the corrugations in both cases. The higher the steps and the greater their density, the stronger the material.. Obviously, the increase in strength leads to an increase in cost, since the greater height and density of the steps of the metal profile means that more sheet material will be required for its production.

Types of metal profiles and their application. Material marking

The strength of the metal profile depends not only on the type of steps, but also on the thickness of the sheet iron, as well as on a number of other conditions. According to the combination of characteristics that affect strength, the metal profile is divided into bearing (the most durable), bearing-wall and wall (the lightest and most elegant).

Bearing metal profile

The supporting metal profile has the largest thickness of the corrugated sheet and the height of the corrugation. In addition, to increase the strength of the supporting metal profile, there are additional grooves that increase the rigidity of the material.

Bearing metal profile used in the construction of auxiliary buildings(, warehouses, etc.), stable fences, as well as for the production of heavy containers and hangars. A functionally supporting metal profile can also be used for the production of roofing, however, the feasibility of such an application should be assessed, since the supporting metal profiles belong to the most expensive types of material.

When marking the bearing metal profile denoted by the letter H.

« When building a house, I used the H-153 profile everywhere, since it was recommended to me as a European standard profile. He built a fence out of it, covered the roof with it and made a small extension for the workshop. I am very pleased with the roof and the extension, everything is strong, reliable, durable, but now I understand that cheaper material could also be used for the fence. It is safe in our village, and a fence made of such a metal profile can withstand even a small assault.».
Nikolai Ermakov, Shiryaevo

Bearing-wall metal profile

When marking a load-bearing wall metal profile denoted by the letters NS.

Wall metal profile

This kind - the cheapest and does not have strength characteristics sufficient to build reliable structures from the material. The thickness of the sheets and the height of the corrugations are in the range from low to medium. At the same time, the wall metal profile practical for wall cladding. Its most durable types can be used for roofing. The wall profile is also used for the installation of fences that will hide the protected area from prying eyes.

Wall metal profile marked with the letter C

« Chose material for wall cladding. The difficulty was that by the end of the renovation, our family was already somewhat limited in funds. At the same time, I wanted the cladding to be beautiful and reliable. On the advice of friends, I purchased a wall metal profile, mounted a layer of insulation under it. Everything turned out even better than I expected.».
Igor Stepanov, Novokuznetsk

In the marking of the metal profile, except for the letters there are also numbers indicating the height of the wave (corrugations), measured in millimeters. So the marking H-75 indicates a bearing metal profile with a wave height of 75 mm.

The metal profile coating not only ensures the aesthetics of the material, but also protects it from the effects of the external environment, increasing the durability of the structures. The cheapest coatings are zinc and zinc with the addition of silicon and aluminum. Those who are attracted by the low price of these types of metal profiles should remember that such coatings unable to provide reliable protection.

If we are not talking about internal partitions, but about external structures, it is likely that in a few years the metal profile will need to be replaced. In addition, profiles with such a coating don't let you choose the right color.

Polyester and polyester-teflon coatings allow the production of metal profiles of various colors. However, these types of coverage much more reliable, they are resistant to moisture, UV rays, etc..

By applying to metal profiles PVC with various additives can be obtained practically any color of the product and reliable protection against external influences. PVC coatings are resistant even to sudden temperature changes.

The most reliable coating for a metal profile is considered to be PVDF (polyvinylidene fluoride). This fluorine-containing polymer is widely used in the production of anti-corrosion coatings. PVDF will protect the metal profile from any type of impact, including aggressive chemicals. PVDF profiles are the most expensive, they are often used for the construction of ceilings and structures in industrial premises.

When building a house, one of the last steps is laying the roof. To do this, you can use different materials, for example, tiles, as well as slate. But a more modern and reliable option is a metal profile. Due to its qualities, this material has become widely used in many countries of the world, not only for laying roofs, but also for making fences. This article will focus on the metal profile, as a material for laying roofs, and will also give detailed step-by-step instructions on how to calculate the required amount of metal profile for the roof.

What it is

A metal profile (also corrugated board) is a sheet metal material that resembles slate in appearance, and is very durable with a low weight. This material is most often coated with galvanized steel. During its production, a corrugation process takes place, during which the corrugated board acquires a wave-like appearance, like that of slate, and becomes more durable from this.

The height and size of the waves can be different.

Advantages and disadvantages

The metal profile has a large number of advantages:

1. Price. For the manufacture of corrugated board, galvanized steel is used, which is a very economical material. Therefore, the cost of corrugated board is also low. This is one of the most important qualities of this material.
2. Ease. In order to bring this material, it is not necessary to hire heavy equipment at all, since it is a fairly light material.
3. Strength. Unlike other materials, the metal profile, even at low weight, is a very durable material. As already noted, strength is also given by a wave-like shape.
4. Corrosion resistance. During the manufacturing process, the corrugated board is coated with a special polymer layer, which gives the material high resistance to corrosion. Other metallic materials are susceptible to this destructive effect, which can negate long hard work.
5. Weather resistant. The metal profile can be used in any weather conditions, from this its quality will not decrease at all.
6. Wide range of uses. Due to its qualities, this material began to be used not only for laying roofs, but also for the construction of fences and other barriers, as well as for ceilings and wall decoration. Due to its lightness, this material does not require any special equipment when working with it, which again saves money.
7. Colour. This is also one of the main advantages of the metal profile. The professional flooring can be the most various flowers and a shade that allows to concern creatively to laying of roofs. These are the advantages of a metal profile. Of course, there are also disadvantages, but with such a large number of pluses, there is only one minus:
8. Thermal insulation. Decking is not able to provide thermal insulation. But this drawback can be completely eliminated, because heat-insulating material can be bought at any hardware store and finished with a roof before you start fixing the corrugated board.

Kinds

Decking can be classified according to various parameters, the most basic of which are classification by purpose.

So, by appointment, the material is divided into three types:

This type is most often used to install fences and other protective structures. Its main purpose is external and internal wall cladding. It is also used for the construction of pavilions, kiosks and stalls. The thickness usually varies from 8-9 mm to 36 mm.

Carrier. This type is usually marked N. It is also most often used for interior and exterior wall cladding, as well as for the construction of a garage and carports.

Roofing. This type of corrugated board is mainly used for roofing. Unlike other types, the roofing metal profile has higher corrugations, which undoubtedly increases the bearing capacity. This material is produced by rolling hot galvanized sheet through special machines. At the same time, the rollers of the machines are adjusted in such a way that as a result, sheets of a wide variety of shapes can be obtained. According to its characteristics, the roofing corrugated board in many respects surpasses the metal tile.

The size

The corrugated board is made of steel, which is initially wrapped in the form of a roll. Therefore, the length of profiled sheets can be different, and this will depend on what length the customer ordered. But the width of the sheets is usually 900-1800 mm.

The thickness of the sheets also varies, but 0.5 mm, 0.55 mm, 0.7 mm, 0.8 mm and 1 mm are considered standard values.

There is one more characteristic - height. The height of the profiled sheet is the distance between the extreme points of two corrugations, which are considered as adjacent corrugations in relation to each other. It should be noted that if there is a desire to show the volume of the roof, then the height of the profiled sheets should be high.

How to make a material calculation

Before purchasing profiled sheets for roofing, it is necessary to calculate how many such sheets and what size will be needed.

There are two ways to calculate:

1. Calculation using special computer programs.
2. Independent calculation.

The first has a number of advantages over the second method:

1. This will give you accurate results.
2. It is possible to calculate the amount of material for roofs of the most complex structures, taking into account all, without exception, overlaps and roof slope.
3. During the calculation, you can change certain parameters, which will allow you to get the most optimal result.
4. The programs also provide an opportunity to choose the color and other characteristics of profiled sheets.

Such calculation programs can be downloaded from the Internet for free, or you can use online calculations, where you need to enter the necessary data in the empty fields, after which the system will display the result. An independent option is also a good option, but experts recommend a computer method, since there is a risk of making a mistake in an independent calculation, especially if the roof has a complex structure. In addition, this method takes a lot of time.

Here are the basic principles:

1. You need to calculate the width of the sheets. In general, there are two widths:
   • Full 1180 mm.
   • Useful 1100 mm. The thickness and weight of profiled sheets should also be entered in the calculation table. These values ​​are specified by the seller.
2. Then the number of profiled sheets is calculated. To do this, the length of the roof slope is divided by the working width of the sheet, which is equal to 1100 mm. In this case, the overlap is 80 mm (1180-1100=80 mm). But: the amount of vertical overlap depends on the grade of the profiled sheet, as well as on the wave pitch. All these parameters should be checked with the seller.
3. Now you need to decide on the number of horizontal rows. To do this, take into account the total length of the roof slope (the cornice overhang is also included in this length) and the length of one sheet. The cornice overhang is also specified by the seller or specialist.
4. Then you should choose the size of the horizontal overlap. This value depends on the angle of the roof. There are several options:
   • If the angle of inclination is 15 degrees or up to 15 degrees, then the horizontal overlap is approximately 200 mm.
   • If the angle of inclination averages from 15 to 30 degrees, then the horizontal overlap is taken from 150 to 200 mm.
   • If the overlap angle is more than 30 degrees, then the overlap is taken in the range from 100 mm to 150 mm.
5. Now it is necessary to take into account additional (additional) elements of the roof. When calculating the additional elements, it is necessary to add up the lengths of the profiled sheets on which they will be installed, and the result obtained must be divided by 1.9. The overlap of additional elements should be 100-200 mm.
6. If valleys are calculated, then the sum of the lengths of the sheets must be divided by 1.7, given that the overlap should be 300 mm.
7. Fasteners. For an additional element 2 meters long, you will need about 8 pieces of self-tapping screws. For one square meter of roofing, 7 self-tapping screws will be needed.

That's all. This is how the calculation is made. It should be borne in mind that this method should be used only if you want to cover a roof of a simple shape, for example, a garage, a bathhouse, etc. If the shape of the roof is complex, with many protrusions, then you need to resort to the help of a specialist or to a computer method.

Mounting

Before covering the roofs with a metal profile, you must first build a crate. It is usually made from wooden boards that have been treated with an antiseptic. Then a layer of thermal insulation and waterproofing is laid. You also need to think about the ventilation holes, which are usually located on the highest sections of the roof. To remove air, special gaps are usually used, which are installed between the roofing ridge and the slab.

The waterproofing film is laid in the direction from the cornice overhang to the ridge. The film is also overlapped, and the joints are fastened with special glue. After the ventilation system, vapor barrier and waterproofing are completed, you can put the metal profile on the roof, arrange the sheets according to the calculations, and proceed with the fastening.

Fastening

The process of fastening the metal profile to the roof is carried out using self-tapping screws, which are equipped with special insulating and waterproofing elements.

When fastening, you must adhere to the following rules:

1. Self-tapping screws should in no case be clamped too hard, but not too weak. This can lead to the fact that water begins to drain through the resulting gap.
2. Self-tapping screws must be inserted strictly perpendicular.
3. Self-tapping screws should be screwed at an equal distance from each other in places of overlap.
4. When fastening the ridge, the distance between the screws should be taken at 300 mm.

If you follow all these tips, as well as the recommendations of experts, the roof will serve for a long time.

Estimated cost

As already mentioned, the metal profile is an inexpensive material. But it should be noted that the price per square meter of this material mainly depends on the polymer coating. For example, if the sheet is not covered with a polymeric material, then it can be purchased at a price of 250 rubles per square meter, and if it is covered with some kind of polymeric material, then the price will be higher than 600 rubles.

In general, the total cost consists of the cost of purchasing sheets and installation work.

If we consider that the sheet was purchased at a price of 700 rubles per sq. meter, and a certain number of such sheets were needed, then 700 rubles should be multiplied by this amount. Then it is necessary to add 1000 rubles to the result obtained (the cost of self-tapping screws, etc.). Now you need to calculate the cost of installation work, such as installing battens, installing rafters, laying sheets, and others. All this in general will cost about 1500-2000 rubles.

Then you need to summarize all the results obtained:

1. Sheet purchase costs.
2. 1000 rubles (the cost of self-tapping screws).
3. The cost of installation work, approximately 2000 rubles.

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The professional flooring is the most widespread type of roofing materials today. Profiled sheet dimensions depend on two parameters: the desire of the customer and the purpose of use. The material is a wave-shaped steel sheet with a special polymer coating.

Decking sheet size

The material is used in the construction of roofs, fences, wall cladding, creating a frame for non-residential premises, etc. This material is used for both external and internal cladding, this is allowed.

Metal profile - sizes and types of sheets:

• N - bearing, roofing corrugated board. The height of the corrugation of the sheet is more than 44 mm. Such a corrugated board is characterized by increased resistance to mechanical stress and rigidity. Thanks to this, it has found its application in the construction of supporting and load-bearing structures, ceilings and roofs.
• C - wall corrugated board. Due to the lower height of the corrugations (from 8 to 44 mm), it has not so high rigidity indicators. Therefore, this type of profiled sheet is used as a facing material.
• NS - bearing-wall, universal corrugated board. The height of the corrugation is 35-44 mm. It has good rigidity indicators, and therefore can be effectively used both for creating walls and fences, and for mounting roofs.

Roof decking is usually used - the sheet dimensions of which do not exceed 4 meters. At large lengths, it becomes inconvenient to work with the sheet.

The length and width of the metal profile

Profiled sheet length can be completely different, as it is made of rolled steel. Therefore, this dimension depends on the needs of the customer. When take into account not only the length of the roof slope itself, but also the overhang of the visor.

Usually used corrugated board whose sheet width ranges from 980 - 1850 mm. In this case, it is worth distinguishing between the useful and real width of the sheet. So, the useful width, due to the installation of overlapping corrugated board, is always 4-8 cm less than the real one.

No less important is the purpose of the material. So, a metal profile whose dimensions are 2.4-12 meters can be used for an absolute number of tasks in construction. Standard sizes of metal profiles are used for roofs of large buildings - this allows you to lay the profile in a certain order, thereby achieving high tightness and excellent appearance of the roof.

How to choose corrugated board, in detail on the video:

Metal profile - thickness and height

The thickness of the metal profile sheets directly affects the strength of the material - the larger it is, the greater the load the material can withstand. The standard thickness of corrugated board is 0.5 and 0.55 mm, there are also sheets with a thickness of 0.7, 0.8 and 1 mm (read: ""). When determining the required sheet thickness for construction, one should start from the area of ​​\u200b\u200bthe object being built and possible loads (also read: "

A metal profile is a material for creating closed contours, which is a steel sheet protected from corrosion, having stiffeners that create a monotonous repeating pattern. Such a pattern can be a wave that imitates a slate wave, or a set of trapezoidal profiles that create a crest of different heights and widths.

The main parameters of the metal profile

If you bend a paper sheet, then it will receive additional rigidity along the edge and will not sag in your hand. In the same way, metal thin sheet gets a new quality and look with each new bend. This property of materials was used in the production of profiled sheet, which was passed through press brakes and received a new material that received additional rigidity.

Such material is called a metal profile. However, the basis is always steel with anti-corrosion coating. As a protection, it can be double-sided galvanized or modern polymer coating with coloring of the outer surface.

Characteristic parameters for the use of the material will be:

• sheet thickness;
• the size of the wave or corrugation according to the height of the crest;
• distance between two ridges;
• the composition of the anti-corrosion coating;
• metal profile sheet dimensions;
• features of rolled corrugations and the thickness of the lower section.

At the same time, any metal profile has compliance with GOST for all types of products, depending on the material of the base layer. So, GOST 24045–94 determines the dimensions of the product and gives a decoding of the marking that accompanies each batch of material.

GOST 24045–2010 outlined the requirements for a galvanized steel profiled sheet. GOST 14918–80 gives the basic requirements for a sheet with a zinc coating, and GOST 30246–94 creates a standardization of a metal profile, types of polymer anti-corrosion treatment.

Since the metal profile is made from a continuous sheet of tape, its width is standard and depends on the width of the table, and the length can be changed. It is possible to perform cutting, as well as into narrower strips in width, and by order of the manufacturer of works and according to the project, the length of the sheet can be up to 14 meters. A sheet with a width of 980 and a length of 1850 mm is considered standard.

Sheet thickness and metal profile marking

The thickness of the base metal layer is defining indicators when choosing a material. A metal profile is made from a sheet with a thickness of 0.45 to 1.0 mm. The weight of one square of the material, its strength properties and cost depend on the thickness of the material used.

The strength and resistance of rolled metal to external influences change at different frequencies and depths of the material profile. Therefore, the whole series is divided into categories:

• n - bearing, means the possibility of its use when laying the roof;
• c - used for walls, fences and various partitions and false walls;
• ns - universal material.

The height of the ridges and their distance from each other will be decisive in the use of the material with the same thickness of the base. In the marking of products, the numbers following the letter indicate the height of the corrugation in millimeters. The higher the index, the higher the bearing capacity of the sheet. At the same time, the minimum indicator is 20, 44 and more - this is a corrugation for roofing material.

The distance between the crests of two profiles is called the height. This distance determines the frequency of the crests and depends on this parameter. sheet strength and weight. A profiled sheet with a rare corrugation is used for fences and internal partitions.

Protective coatings for metal profiles

The base of the profiled sheet is steel. This metal can only be used after corrosion protection. One way is to use galvanized steel tape. In this case, the coating is applied before entering the machine for profiling the material.

Spraying or painting is also a protective coating. In this case, the coloring must be renewed as the layer is destroyed. The most commonly used in modern conditions is the double-sided coating of steel. polymeric material while applying a layer of coloring pigment to the top layer. This coating is durable and does not require additional care.

Metal profile dimensions

When performing construction work, the task of designers is to use a material with a minimum number of butt joints. The profile sheet can be cut to the desired length on request. And when laying the roof, it can turn out to be a continuous carpet without joints along the slope. Therefore, marking the sheet in width has two sizes. So, 1060/1000 means that the overall size of the sheet is 1060 mm, and the useful one, which should be taken when calculating the required amount of material, is -1000.

The difference is due to the imposition of one corrugation for a tight and durable connection. Considering the consumption of material, one should proceed from the useful area of ​​\u200b\u200bthe sheet. It can decrease if the length is not enough to cover the entire roof slope and you have to overlap the material.

Conclusion

So, the standard sheet has a width of 980 and a length of 1850 mm. On request, the factory can perform any longitudinal cutting up to 14 meters. Can be ordered coating of a certain color or galvanized steel. The material is selected according to the number of corrugations and the height of the crest, depending on its purpose. The cost of a profiled sheet increases depending on the thickness of the base metal, on the weight of one square meter of the metal profile and the type of anti-corrosion protection.

Metal profile sheets are a versatile material, characterized by ease of installation and optimal strength characteristics. When choosing a corrugated board for a roof, facade cladding, roofing or creating a modular structure, it is important to focus on the thickness of the sheets, type of coating, wave and other points. What kind of corrugated board to choose to start building a roof? Consider the features of the roofing material, its main qualities, and proceed to the arrangement of the roof.

Features of the production of profiled sheets

The standard sheet is made of steel with a thickness of 0.4 to 0.8 mm, which is hot-dip galvanized or coated with aluminium. Due to the processing of the corrugated sheet, the resistance of the material to corrosion improves, and the strength indicators increase.
After coating, the metal layer is lowered into the machine, creating the necessary “wave” and parameters. When buying a profiler for a roof, owners of country houses are recommended to order its additional processing:

• creation of a two-sided protective layer by passivation. Sheets are coated with a special compound;
• additional staining on both sides - they work with a primer from the inside, and a polymer is applied to the outer part.

The quality of the coating provides a choice of which types of corrugated roofing will be relevant for construction, and allows you to determine the benefits of the material.

Advantages of metal profile sheets

To qualitatively cover the roof of your own house, appreciate the advantages of metal with profiling. A good professional sheet has the following characteristics:

1. Ecological cleanliness - production was carried out by using non-toxic materials;
2. Rich coloring, which allows you to use the material that is needed to create a harmonious architectural ensemble;
3. Variable price range, so that the owners can choose the best type of sheets with profiling;
4. The standard seam length is 20 m. It is enough to cover the roofing surface with any slope without forming joints.
5. The ease of self-installation of corrugated board on your roof, which can be done by two people.

If the owners know how to choose high-quality profiled sheets, they will ensure long-term operation of the house and the comfort of living in it.

Domestic GOST: requirements for profiled sheets

When planning to choose corrugated board for the roof, it will not be superfluous to pay attention to the technical standards of the material. Manufacturers adhere to the requirements of GOST 24045-94, because it contains the norms that the metal profile material must comply with - the quality of raw materials for production, the geometry of the profiles, the principles of marking, the features of testing products and the rules for transportation. According to the regulatory document, it is possible to determine which type of corrugated board is suitable for the roof. Depending on the marking that the profile has, the material is divided into:

• "N". The index indicates the increased bearing capacity of the metal. A working width of 110 cm is enough to cover the roof with high quality.
• "WITH". The letter marks the metal sheet used for arranging walls. It has a letter value from 21 to 21 and is intended for work in areas with a temperate climate;
• "NS". Universal marking explaining the use of a metal profile for organizing fences, gates, sides of arbors. However, by choosing a sheet marked HC-35 or 44, it is possible to strengthen the roof in regions with extreme temperatures.

When comparing which corrugated board is better for a roof, stop at the metal with the indices "H" or "HC". The products have an optimal shape, profile parameters and maximum load-bearing capacity.

Varieties of profiled sheet

Manufacturers produce various types of corrugated board, varying depending on the thickness, parameters, ridge height, type of protective coating and color.

Wave height - determine the stiffness

For a roofing metal profile, it is important to take into account the height of the ridge - it is responsible for the characteristics of rigidity and throughput. Large indicators increase the cost of the roof, but ensure the longevity of the house.
The wave of profile sheets is from 10 to 114 mm, so consider its slope and slope area. The correct corrugated board for the roof is with a wave height of at least 20 mm.

Material thickness - set strength

Keep in mind that, depending on the thickness, the corrugated board determines what strength and reliability the roof will acquire. Metal profile sheets are produced with a density of 0.1 to 1 mm. When planning how to use the material correctly, notice how thick it is made:

• for the construction of the roof, a steel sheet from 0.4 to 1 mm is optimal;
• the thickness of the corrugated board for the roof determines not only the cost of expenses, but also the strength of the structure;
• wind force justifies the use of a metal profile with a density of 0.45 - 0.5 mm;
• a thick coating will create a load on the truss frame and beams, so the structure will need to be strengthened.

Its main parameters will depend on the thickness of the sheet.

Material dimensions - ease of roofing

The length and width of the profile material is always at the discretion of the buyer. There are no clear criteria for parameters, but it is important to know the following when choosing:

• the dimensions of the profiled sheet will depend on the total area where the roof is being made. Before buying, draw up a drawing and ask the supplier to cut the rolled metal;
• the length is selected according to the scope of use of the corrugated board. The dimensions of the sheet intended for covering residential buildings are from 6 m.
• sheet width is set by production standards. The standard steel parameters are 12.5 cm, but they vary in the height of the corrugations. To cover the house, profiled layers with a width of 0.98 - 1.85 m are relevant. Since the sheets are overlapped, the width is 40-80 mm less than the declared one.

To choose the right corrugated sheet material, calculate its quantity. Experts recommend buying 10-15% more metal profiles than required for work.

Do I need to take into account the slope of the roof?

It is imperative to take into account the angle of inclination of the surface. Even high-quality material will not provide tightness if the roof is designed incorrectly. The steepness of the roof slope determines how much profiled sheet for the roof you need:

• a slope greater than 10 degrees provides for an overlap of 30 cm and additional surface treatment with sealants;
• a slope of 10 to 15 degrees contributes to an overlap of 20 cm;
• a roof tilted from 15 to 30 degrees requires an overlap reduction of up to 17 cm.

On small slopes, profile sheets are laid with an overlap in two ribs.

Coating of profiles - prevention of corrosion

The rational choice of corrugated roofing should be based on the quality of its protection against corrosion and rust. On the surface of the house, sheets with several types of coating are used:

• galvanized. It optimally combines price and quality indicators, but the zinc coating reflects the sun's rays and creates an uncomfortable microclimate in summer. Metal is suitable for organizing a garage or outbuildings;
• aluminum silicon treatment. Increases the stability of the material, is applied to profiled sheets used for durable buildings - street arbors. Processed products acquire resistance to wet and aggressive environments.
• pural. Material based on polyurethane components. Polyamide additives increase the reliability of sheets, increase their resistance to ultraviolet radiation. The composition applied to the metal profile sheet with a layer of 50 microns is frost-resistant.
• polyester. Budget coating with a glossy and matte texture. Despite the absence of glare and color fastness, it is able to scratch and chip.
• plastisol. In terms of reliability, it is comparable only with pural, since it is applied with a layer of 200 microns. Thanks to relief embossing and dashed notching, it is used under extreme climatic loads.

All steel elements during the coating are primed with anti-corrosion agents, covered with a chromate layer and a decorative composition. Therefore, what kind of corrugated board will be better for the roof, only the owner of the cottage, who has selected material according to the architecture of the object and the landscape style of the site, can say.

Criteria for the selection of profile sheets

When choosing which corrugated board to cover the roof, pay attention to its marking. Not only the alphabetic or numerical index is important, but also the GOST or TU marks. They mean compliance with the requirements of government regulations, which are higher than those of manufacturing companies.
There are other requirements that will help buyers how to choose corrugated board. Experts recommend focusing on:

1. Appearance of profile sheets. Check out the products. They should not have defects - chips, peeling, paint drips.
2. Geometric proportions of roofing material. The manufacturer must correlate the dimensions of the corrugated board needed for your roof with the products he has. Measurements of thickness, width and length according to GOST are a sign of a quality profile.
3. wave proportions. Profiled sheets are overlapped, so the upper corrugation necessarily covers the lower one. Thinking about what type of corrugated board to choose for arranging the roof? Purchase 20 cm of metal required in order to perform a high-quality overlap and reduce the risk of moisture getting on the roofing cake.
4. The quality of cutting sheets. At the factory, the metal profile is cut with a guillotine. Smooth and precise edges without nicks - a guarantor of the absence of rust.
5. Strength indicators. The round samples shown by the seller will not explain the strength of the material. Ask to see square patterns.
6. Sealed packaging. If the profiled sheets are properly packaged, they will not be damaged during transportation.

Be sure to ask the supplier to issue a guarantee for the product and present certificates of conformity. This will not only demonstrate the quality of the material, but also declare the responsibility of the seller company.

We select the brand of material

When considering which corrugated board to use for the roof, it is important to know its numerical index. According to the height of the wave and the thickness of the sheets, several types of material are distinguished

Profile marked C21

Is issued in the form of a trapezoid of standard length (2, 3 and 6 m). To complete the roof, you need to focus on the dimensions of the corrugated board: a width of 1.05 m, a wave height of 21 microns and a thickness of 0.4 - 0.7 mm. The metal material is suitable for creating a roof covering on a sparse batten or as a sheathing for a garage.

Roofing profiled sheet С44

It is most convenient to work with sheets 1.47 m wide. The height of the profiled sheet laid on the roof is 44 microns, and the thickness varies from 0.5 to 0.8 mm. The profile is reinforced with additional stiffening ribs, provides for the construction of a roof on a crate with a step of 2 m, as well as frames for gazebos or change houses.

Decking with index HC45

The construction of a home roof can be carried out from corrugated sheets with a width of 1.06 mm. The recommended thickness is 0.5-0.8 mm and the profile height is 35 mm. The rigidity and strength of the material guarantee the reliability of the roofing on the crate with a step of 4.5 m.
Having decided on the material, do not forget that its price depends on the alphanumeric index.

What you need to know about the price of a professional sheet?

Thinking about which corrugated board is best suited for the roof, do not forget about its cost. When a metal profile sheet is below average, then they saved on its production. Try to choose products that are average in price.
Focusing only on the price is the wrong approach to buying, because the prices include the type of metal, its thickness, coating, production technology, transport costs and the promotion of the supplier brand.
Planning to do your own roofing? Consider all the recommendations for choosing and buying corrugated board. Be sure to study the slope of the roof, the climate of the region of residence - and you are guaranteed to find out which corrugated board will be ideal for your roof.