What is the profile for the roof? How to choose a quality profiled sheet - the price of the material and other selection criteria. Fence tree profiled sheet

Among inexpensive roofing materials with high performance parameters, profiled sheet is very popular. Modern technologies allow the production of profiled sheets with various technical characteristics, in a wide range of colors. To determine which corrugated board is best for the roof, it is recommended to proceed from the features various kinds profile, material thickness and coating quality.

Profiled sheet features

Profiled sheet is a material that has found wide application in the construction industry, due to its practical properties and affordable price. Each type of decking has its own technical features. Among the material suitable for arranging the roof, one can distinguish:

• galvanized profile without polymer coating (attractive low cost, usually used for roofs of garages, outbuildings, sheds);
• corrugated board with a polymer coating (wall or load-bearing);
• roofing corrugated board (bent, rolling, with textured embossing).

The professional flooring is made of rolled steel by method of cold profiling. The technical characteristics of the material primarily depend on the depth and configuration of the profile, as well as the thickness of the steel.

Popular profile types

When building a roof, a profile can be used:

The height of the profile must be at least 20 mm.

To determine which profiled sheet is best for the roof, you need to pay attention to the presence of a special capillary groove in the profile. When laying the profiled sheet with an overlap, this groove allows rainwater to be drained. It should be noted that the facade corrugated board does not have a capillary groove.

The bearing profile is equipped with a capillary groove, this material can be successfully used both for roof decking and for wall cladding. If choice roofing material decided in favor of the carrier profile, it is necessary to carefully consider the thickness and quality of the metal.

In a cheap profiled sheet, the capillary groove is easily deformed, becoming useless.

Types of corrugated roofing differ in the thickness of the metal and the distance between the ridges. Among the brands used for roofing can be noted:

• S-21 - the profile has sufficient rigidity, provides high-quality protection against precipitation, is mounted on a crate, the step of which is up to 80 cm;
• RN-20 - corrugated board with a capillary groove, the working width of the sheet is 110 cm, it has the necessary rigidity to create a solid roof;
• C-44 - the profile is equipped with additional stiffeners;
• NS-35 - is highly durable.

Criteria for choosing a profiled sheet for a roof

Product marking allows you to determine the type of profile. For roofing, it is recommended to use a profiled sheet of grade H and C (bearing and wall). At the same time, the carrier profile has higher specifications. After the letter designation of the profile type, the marking indicates the thickness of the metal, the height and type of the wave of the sheet, its useful width. When choosing a material, you should familiarize yourself with the GOST or TU according to which it is made, check for a certificate.

The choice of metal thickness and the degree of rigidity of the sheet directly depends on the angle of the roof. The greater the angle of inclination, the stronger the wind and snow load, respectively, the higher the requirements for the strength of the roofing material.

How to choose corrugated roofing, the quality of which will not disappoint? Great importance has a visual inspection of the material. A high-quality profiled sheet should be even, without external defects - burrs along the edges, dents, scratches, paint runs or peeling, chips. Coloring should be uniform over the entire surface. With a slight bending of the sheet, it should not crack or break - a high-quality profiled sheet will quickly restore its original shape.

Protective and decorative coating

The durability of a metal sheet roof largely depends on the quality of the material's protection against corrosion. The profiled sheet used for arranging the roof is supplied with a protective zinc coating. Hot-dip galvanizing makes it possible to give the material anti-corrosion properties, protecting it from external destructive influences. When choosing a roofing material, you should pay attention to the thickness of the galvanization - the higher this indicator, the longer the operational life of the roof can be expected.

Today, manufacturers supply corrugated board with an additional protective and decorative coating. The polymer layer is applied after passivation and priming of the sheet to ensure high adhesion of the protective coating, to prevent peeling and chipping of the paint layer. Thanks to a fairly wide range of shades, it is possible to choose the colors of corrugated roofing for the roof, suitable for the implementation of conceived architectural and design ideas. The finish can be glossy or matte.

The quality of a colored polymer coating primarily depends on the characteristics of the original polymer. In the production of corrugated board is usually used:

Polyester- the most affordable coverage option. The decorative qualities of polyester are quite high, but the polymer layer itself is not very durable. Thus, the mechanical impact on the roof, which is inevitable during its operation, can lead to abrasion and peeling of the polymer layer.

Pural- polyurethane-based polymer, has a higher resistance to mechanical damage and aggressive environments. Roofing material with such a coating is more expensive, but is designed for longer operation.

PVDT(polyvinyl difluoride) - the most durable coating with high light and chemical resistance, resistance to mechanical damage. These qualities of the coating significantly increase the cost of the product.

Material prices

The cost of corrugated board depends on the purpose of the material, the thickness of the sheet and the presence of a decorative and protective coating. Before buying, it is recommended to compare the cost of goods in different stores. If possible, it is advisable to order corrugated roofing directly from the manufacturer, as this allows you to purchase:

• sheets of the required length, taking into account the features of the roof;
• corrugated board, painted according to your choice;
• a set of accessories for mounting (profiles, strips, etc.).

Despite the fact that the corrugated board is different affordable price, high-quality material can not be very cheap. If you save money and purchase a profiled sheet with inadequate characteristics (made of low-quality metal) roofing in a short time will require repair or replacement. As a result, significant funds will have to be spent on the dismantling of the old coating, the purchase of new material and its installation.

Which is better to choose corrugated roofing

Building a house is a rather long and laborious process, you need to think through all the nuances to the smallest detail. Even at the design stage, the question arises of what material the roof will be made of. Today, several coating options are presented on the building materials market, but corrugated board is optimal both in terms of technical characteristics and price category. After all, it is strong, durable, easy to mount, has a large assortment and color range.

Profile sheets are great for industrial and commercial premises, warehouses and residential buildings. But not many people know how to choose it correctly on the roof, since this is enough universal material and can be used for building modular structures, fences, facade cladding, etc.

Based on such a wide range of applications, this material is made in different grades, which differ significantly from each other. Therefore, in order to understand here and decide on the choice of a suitable corrugated board for the roof, it is worth studying in detail the characteristics of each type of profiled sheet.

Advantages of corrugated board

Choosing suitable material for the roof, you need to focus not only on the installation methods, but also on the operational characteristics of the coating. Profiles have the following advantages:

Its minor disadvantages include the fact that when laying sheets, you should only step on the wave, otherwise metal is deformed. But with strong gusts of wind, it is not recommended to lift and install the corrugated board, since a strong windage can harm it.

Types and marking of corrugated roofing

Today, quite a lot of large and small enterprises produce this type of materials, having developed their own technical conditions for production. But, it is better to choose corrugated roofing made in accordance with GOST 24045-94. Since this standard regulates:

• The quality of the raw materials used;
• Goods labeling rules;
• Sizes of sheets of different brands;
• Checking the quality of finished products;
• Conditions for storage, packaging and transportation of profiled sheets.

According to this GOST, all types of corrugated board are divided into types with this index marking:

• "H" - such sheets have a high bearing capacity and are used for roofing, ceilings. These profiles are the thickest, and the height of the corrugations is the maximum. There are also additional grooves, which make them more resistant to stress.
• "C" - corrugated board used for walls, fences, since it has an average thickness, height and corrugation shape, it is excellent for vertical fastening. But for roofs, this type of material is not recommended because there is a high risk of product deformation under the influence of a large amount of snow or precipitation.
• "NS" is a universal type of profiled sheets, since it is suitable for roofing, various buildings, it can be mounted both in a horizontal and vertical position.

When choosing corrugated board for the roof, it is better to focus on the brands "NS" and "H". After all, it is these sheets that have the right height and shape, which ensures maximum load-bearing capacity. And this is very important, since the roofing material must withstand significant loads, for example, in the winter season - snow.

But the assortment of corrugated board is large, but you can select the most popular brands, which used in construction:

Also, when choosing corrugated board, an important criterion is what kind of protective coating it has, since it has different resistance to climatic conditions. You can find out about it from the seller or look at the packaging. Primarily the following polymers are used:

• Galvanized. Such a coating is the cheapest, but not very durable, since it is erased from the profiled sheet. Availability of profiles only in silver color.
• Aluminum with the addition of silicon. Protects metal a little longer, but also wears off quickly.
• Polyester. It is reliable and inexpensive option coatings, as it perfectly protects against the effects of negative factors associated with climatic conditions. On sale is a large color palette, with a matte or glossy surface.
• Plastisol (a mixture of PVC with various additives). It belongs to the most stable coatings, which are not afraid of climatic influences and loads.
• Pural (based on polyurethane). An excellent protective layer that is not afraid of drops and high temperatures, does not fade. You can also walk on it in any shoes without fear of scratches or dents.
• PVDF (20% acrylic and 80% polyvinyl chloride). A novelty among coatings, the best of the above analogues. Resistant to aggressive environments, for example, where there is a high concentration industrial facilities, on the coast of the seas. It can be called eternal material.

For the color of the corrugated board, you can choose any. In addition to standard colors, there are sheets with a metallic effect, images imitating fired ceramics or wood. In reality, coated profiled sheets can last up to 50 years, and warranty is given for 10-15 years that the brightness of the color and the quality of the texture will remain unchanged.

The choice of corrugated board depending on the calculated load

The main characteristic of the profiled sheet is its bearing capacity, which is determined by the height of the trapezoid. Therefore, in order to determine which profile is needed in each individual case, it is necessary to know exactly the possible load on the roof. And for this it is worth asking about the snow and wind load characteristic of your region.

The slope of the roof is also important when calculating the wind load. Therefore, the calculated value of the wind pressure is multiplied by the ratio of the height of the roof to the length. Do not forget to add to the total load figure and the weight of the profiled sheet itself.

Depending on the scheme of installation and support of profiles, their limit will also change. permissible load. And it is very important to know if the planned roof will be flat and large for the area. Below is a table of maximum loads for different grades of corrugated board.

Table of ultimate loads

Also, when choosing corrugated roofing, it is worth considering the thickness of the metal. After all, everyone additional 0.1 mm of its thickness, increases the operational life of the roofing by 5 years.

The presence of stiffeners significantly increases the bearing capacity of the profile when it is mounted on roofs with a slight slope and a significant distance between the supports.

Nuances when buying corrugated roofing

Independently planning and building a house, you need to responsibly and carefully approach the choice of corrugated roofing. Having studied all its types and markings, you need to figure out what other nuances there are. when choosing the best roofing:

To make a strong, reliable and durable roof, it is better to choose galvanized corrugated board Pural or PVDF coated. And for the construction of a temporary cover, a profile with an alu-zinc coating is perfect.

Conclusion

In order to choose the right corrugated board for the roof, you need to take into account more than one number of indicators that cannot be simply calculated and analyzed by eye or from the words of the seller. Therefore, it is necessary to approach this solution of the issue slowly and with all responsibility.

You should not be afraid to ask or even in some cases require sellers to show the appropriate quality certificates for these products. After all, it is in them that you can find all the exact information about the product. It indicates its dimensions, weight, test indicators, what raw materials it is made of and the material of the additional coating.

Which corrugated board is better for the roof

Tiles were considered the most beautiful roof in ancient times. It was incredibly expensive and inaccessible for the following reasons:

1. Each element was made by the master separately manually. BUT handmade has always been valuable.
2. The weight of a thousand ceramic tiles could only be supported by thick stone walls. And they are not cheap.
3. Each detail had to be laid out exactly, under the ruler. And to hire many workers for work, because a house cannot stand for a long time without a roof. And they all had to pay.

But today corrugated board is available to you, which is available in all three categories:

1. The sheet of a professional flooring is made at factories in all countries of the world and has excellent quality. Competition does not allow the price to become big.
2. The corrugated board sheet is so light that only two people can lift the corrugated board onto the whole roof at a time.
3. The sheet of a professional flooring is integral with a length of 12 m. The absence of joints also adds to its tightness.

Also, corrugated board has a number of other advantages. It is environmentally friendly.

It can be made with polymer protection and without. He happens to be the most different colors. You can choose the shape you like (edge ​​depth, wave width, etc.). This type of coating is the cheapest on the market.

Video - How to choose the right corrugated board?

Types of corrugated roofing

There are three main types:

• Decking with the letter "H" - which means "flooring". This type of corrugated board is used only for interfloor coating.
• Decking with the letters "SN" - "wall, flooring". Universal look coatings. Used for both roofs and walls. Can even be used for fences.
• If you see the letter "c", this corrugated board is used only for walls.

Forms of corrugated board

The professional flooring happens with a wave in height from 10 mm to 114 mm. And at the same time, its thickness ranges from 0.1 mm to 0.8 mm.

corrugated board coating

• Zinc. The corrugated board is covered with zinc in order not to overheat in the sun. Even with the greatest heat, it will remain just as cold. It matters when there is nothing underneath. For example, in the garage.
• Aluminum gives corrugated board physical strength and stability, makes it durable.
• There is also a corrugated board, which combines the two types of coverage mentioned above. It is used for cold rolled steel sheets. However, such a connection is very fragile and short-lived.

Color also matters.
And how long the paint will last without losing its presentation is important if the impression of your home is important to you.

1. Polyester cover. The cheapest and most durable. Very soon it will begin to peel off under the influence of weather conditions, and you will see bare corrugated board, which will have to be covered with household paint.
2. Polyvinyl fluoride is the best and most durable coating material.
3. The substitute for polyvinyl fluoride is pural. Durable, not afraid of fire and cold. But it is much cheaper than polyvinyl fluoride.

Layers of corrugated board in the order of application

1. Thin metal plate.
2. Anti-corrosion coating - zinc or aluminum. Their advantages and disadvantages are described above.
3. Chrome finish. It will ensure good adhesion of subsequent layers to each other.
4. Primer.
5. Paintwork. It can be absolutely any color. However, it is worth considering that the range includes mainly pastel colors.

Fastening of corrugated roofing

To attach the corrugated board to the frame, special self-tapping screws with hexagonal caps are used. When buying, pay attention to the color - it must match the color of the sheet. Then you drill a hole in the corrugated board with a drill, where necessary, and screw a self-tapping screw through it.

Sandwich panels coated with corrugated board

Used for insulation pitched roof or cascading wall.

Such a corrugated board has three elements:

1. Decking in the form of an ordinary flat sheet.
2. Thermal insulation. It can be basalt wool, polyurethane foam or polystyrene.
3. The outer sheet of corrugated board with the widest wave - 114 mm high.

There are also options with an additional layer.

The advantage of such a coating is that you immediately install both sound insulation and insulation along with corrugated board. If you installed an ordinary corrugated board, you would have to take extra care of warmth and silence. In this case, it's cheaper and you do three things at once without wasting your energy.

You will also enjoy benefits such as:

• Heat resistance. Basalt wool is created from extinct lava from a volcano, so it does not succumb to fire.
• Ease of installation. Fastens like a regular corrugated board.
• Ease. Does not load walls.
• Inside this corrugated board is aesthetically acceptable for interior decoration attic.

Sandwich corrugated board is also used for wall insulation. And not only houses, but also industrial enterprises.

Installation of roofing sheeting

If you are working alone or two, you will need to cut the corrugated board into pieces in order to lift it up. The tightness will suffer from this if you start laying the sheets edge to edge. To avoid this, they must be overlapped.

If the roof angle is up to 10 degrees, the overlap should be only 100 mm.

If the roof angle is 10-15 degrees, overlap - 200 mm.

If the angle is greater, the overlap is 27 mm.

A crate must be installed under the corrugated board.

It is installed on a waterproofing film that will protect the interior from possible leakage.

The crate itself consists of ordinary boards impregnated with an antiseptic. If the roof has an angle of up to 10 degrees, there should be no gap between the boards. If the slope is from 10 to 30 degrees, the distance between them is 450 mm. If the slope is more than 30 degrees, the pitch is 600 mm.

You can lay the corrugated board starting from the outer edge. But there is an option to impose it in steps. In this case, two bottom sheets are first installed, then one top sheet above the first to the edge. Then the third one is installed at the bottom, then the second one is higher from the edge. Then the fourth at the bottom, then the fourth at the top from the edge, and so on.

It is worth remembering that stepping on corrugated board during installation work you can't - it bends easily. Also, the screws should not be screwed in too tight for the same reason.

The following factors influence the price of corrugated board

1. Sheet thickness
2. The quality of the paintwork
3. Marking (purpose sheet)
4. The presence or absence of insulation
5. Effective area.

The price is usually 150-500 r per sq. m.

Video - Installation of corrugated roofing

What is the best decking for a roof?

Increasingly, when choosing a roofing material, preference is given to inexpensive, but very high-quality coatings, including corrugated board. This is a fairly strong and very durable product, which is a profiled sheet of metal that has undergone a cold-rolled procedure.

A corrugated roof is suitable for any roof structures.

As a result, such a coating turns out to be quite attractive, the polymer layer of paint allows you to choose it in full accordance with the general style of the house. Covering the roof with such material is not difficult.

However, it is important to decide which corrugated board is better, since today a large number of its varieties. Some can be used not only for roofing, but also for the construction of fences, others - for decorating ceilings, walls, awnings, and when constructing floors.

In our article, we will consider what types of corrugated board are suitable for roofing, how to make the right choice.

General characteristics of corrugated board

Before proceeding to the choice of corrugated board, you need to decide on its general characteristics. We will find out what exactly makes it so durable, reliable, attractive in the eyes of not only builders, but also ordinary consumers.

Manufacturers offer us a wide variety of profiled sheets, each type is distinguished by its properties and performance characteristics. Among the types of corrugated board that can be used as a roofing material, we can distinguish the following:

1. Plain galvanized profile, which does not have a polymer coating. It has a low cost, about forty percent lower than corrugated board with a paint layer. Most often needed in the construction of sheds for outbuildings, garages, fences.
2. Steel corrugated board made of ferrous metal, uncoated.
3. Decking from non-ferrous metals: aluminum or copper.
4. Special corrugated board for the roof. It can be: rolled, bent, perforated, with textured embossing.

Each of these has its own characteristics. This is the height, useful and full width of the sheet, thickness (be sure to take into account the moment of inertia).

In order to cover the roof of a house with a durable material, we pay attention to the thickness, type of the outer covering and the appearance of the profile itself. It can be a bearing profile, facade and ceiling, wall, special, formwork.

The production of corrugated board includes the process of cold profiling of strong steel.

As a roofing material, corrugated wall, facade, load-bearing, which has the necessary characteristics, is excellent.

The sheets of the bearing corrugated board themselves have a special capillary groove, which, when overlapping, perfectly drains rainwater, but the facade profile does not have such a groove.

When choosing a corrugated board that can cover the roof of a house without any problems, you should definitely pay attention to this feature. Such a capillary groove should not bend. As a rule, it starts from the ridge and ends at the drain of the eaves. In cheap versions, such a groove is flattened, which makes its presence simply useless; it is not worth buying such a profile, even despite the attractive, tempting price.

Immediately it is necessary to note the following point: only the corrugated board that has this specification can be used as a roofing material, it can also be used for finishing the facade.

But it is not recommended to take a purely facade profile for roofing work!

Roof decking types

Among the main options for corrugated board, which can cover the roof, there are:

1. RN-20 is a corrugated board that can be used for roofing, fence construction, exterior and interior cladding. It has a special groove that provides water flow; during installation, it requires a crate in increments of up to eighty centimeters. The working width of such a sheet is one hundred and ten centimeters.
2. C-21 is a profile with sufficient rigidity for its installation on the roof. When laying, it provides protection from precipitation, the step of the crate should be up to eighty centimeters.
3. NS-35, 44 are used for roof decking and for enclosing structures. Differ in the big rigidity and durability. C-44 has additional stiffening ribs, which makes it a higher quality roofing material.

For roofing, types such as H-57, 750 (900), H-60, 75 can also be used.

The choice of corrugated board with which you can cover the roof of the house is a very important, responsible matter. It must be taken seriously enough.

The main selection criteria are:

• marking (indicated by a capital letter and numbers, shows the purpose of the flooring, data on the thickness, wave height, its type),
• appearance(a high-quality sheet must be even, not have dents, defects; the paint coating is even, of one shade, there are no traces of sagging, chips),
• price ( good material it will not be very cheap, although the corrugated board itself is distinguished by an affordable and attractive price),
• type of polymer coating (the paint layer can be very different, some of its performance characteristics depend on it).

Let's consider these criteria in more detail.

An example of the cost of corrugated board.

1. Marking. As a material that can cover the roof of a house, it is worth using a profile marked C and H (this is wall and load-bearing corrugated board). The latter is preferable, since it has the necessary rigidity for roofing. The order of the numbers in the marking shows the height of the wave of the sheet, its useful width. As a roofing material, it is necessary to take a profile whose wave height is at least twenty millimeters. We also look at TU (technical specifications) or GOST (state standard, considered to be of higher quality), according to which the corrugated board was made. The product must have a certificate.
2. The appearance of the corrugated board. In order not to overpay for the dismantling and replacement of roofing later, you should initially choose high-quality material. You can tell a lot about the quality by looking at it. A bad profile not only cracks quickly, but noticeable flaws and defects appear on it. If peeling of the paint, dents, chips, burrs on the cuts are observed - all this suggests that you do not need to buy such a profile. Try to slightly bend the corrugated board - high-quality material will immediately take its shape without breaking. Small efforts will not leave any marks on its surface at all.
3. Price. The price of corrugated board depends on the thickness of the sheet, the presence of a polymer or plastisol coating, the purpose of the material. Before buying, study the price lists of several stores, as the same material from the same manufacturer may cost differently. It is best (if possible) to order sheets directly from the manufacturer, who will not only cut the profile to the required length, but also ensure that it is painted in the desired shade. The cost of such a coating will be much lower, and experts will help you correctly calculate the amount of roofing material, tell you what additional accessories, strips, profiles for roofing can be ordered.
4. External covering of a professional flooring for a roof. Any corrugated board that covers the roof of a house has a hot-dip galvanized coating. Zinc performs protective functions, protecting the sheet from corrosion. The thickness of this layer depends on the expected aggressive loads on the material, but it should not be too thin. In addition, a layer of polymer is applied to the galvanization after passivation and priming. One of the highest quality coatings are polyester (matte), ordinary polyester, plastisol.

As you can see, choosing a quality roofing material to cover the roof is not so difficult. A few simple but important factors above will help you with this.

Decking for roofing: types, which one to choose and how not to run into a fake

Decking is one of the most inexpensive and beautiful roofing materials. Reliable, durable and has the classic design that will never go out of fashion. But it is not uncommon for rusty streaks to appear on a new and bright roof after two or three years.

Therefore, let's study in more detail the question of what kind of corrugated roofing is needed, what is its advantage over other roofing materials, in what formats it is produced and how to understand complex markings.

What is the value of corrugated board as a roofing material?

Galvanized steel is one of the most widely used and cheapest materials in construction. And the corrugated board is made just from it: by cold rolling and subsequent decorative and protective polymer coating.

Profiling can create a wavy, U-shaped or trapezoidal shape in such a sheet. But this is a necessary measure, and not just an aesthetic effect - this way the strength and rigidity of the sheet increases at least three times. That is why such a simple and inexpensive sheet turns out to be quite a decent roofing material.

Second important point- the corrugated board consists of steel and does not give out any strong unpleasant odors like some of today's roofing. Easy to cut, easy to install. In addition, it can be laid on any roof, the slope of which is not less than 8 °, and the slope does not exceed 20 meters.

And one of the most important advantages of corrugated board as a roofing is its weight. After all, working on a steep roof with heavy, albeit more beautiful, material is difficult and unsafe.

Decided on just such a roof? Then it remains to purchase high-quality, durable sheets with the desired characteristics!

Types of modern corrugated board

The first thing you need to pay attention to is the type of coating, the wave height and the width of the corrugated sheet. Not every type of roof is suitable for a roofing device, this is important!

Marking

The height of the corrugation for roofing corrugated board is acceptable within 10-114 mm. Just based on the height of the corrugation and the thickness of the sheet, three types of corrugated board can be found on the modern construction market:

• Facade class C, which is used for the construction of fences and wall decoration.
• Bearing class H, which is used for cladding walls and partitions.
• Roofing, which just trim the roof. This is the NS class.

More details on the picture:

On the modern market, the most common marking sheets are H45, H75 and H114. On sale you will find sheets C10, C20, C35. The profiled sheeting of class CH is called bearing, wall, because. it is already used for the construction of roofs and solid fences. Its profile height is from 35 to 44 mm.

This diagram will help you understand:

If at the end of the marking you did not find the GOST inscription, then this batch was made according to a different standard. In addition to all this, marking A and B indicates the presence of painted sides, and R indicates the presence of a capillary groove.

Manufacturing technology

There are different types of corrugated board according to the manufacturing technology:

1. Rolled products with aluminosilicon coating.
2. Sheet metal with aluminum-zinc coating.
3. Thin sheet aluminized rolled products.
4. Sheet steel with zinc coating.

For example, AC is thin-sheet rolled products with an aluminum-zinc coating, and AK is the same technology, but with an aluminum-silicon coating.

Here interesting video about the production itself:

Please note that some models of corrugated board and more expensive metal tiles can be made on the same machine, but they will still differ in their qualities. It’s just that some models of corrugated board are universal. Such, for example, can be called S-20 corrugated board: PS-20 - wall corrugated board, and PK-20 - roofing. It's just that the same roll for the manufacture of the wall version and the roofing one is placed on different sides. And there is only one rental. In other words, this is the same profile, but with the reverse side.

Coating quality

Decking today is available in two types:

1. Made of thick galvanized steel, 0.5-07 cm.
2. Made of thinner galvanized steel (0.5 cm) with a modern polymer coating.

And the quality of the polymer coating of corrugated board can also be different. For roofing, the following are considered suitable:

• Polyester. Excellent decorative qualities, but poor protection against mechanical damage. Abrasion and flaking are its main problem.
• Pural. It is just as bad in wear resistance as polyester, but it costs much less.
• PVDT, or polyvinyl difluoro. Excellent qualities of strength and light resistance, rich decorative range. The cost is higher.

For corrugated board, both sides of the sheet, one of the sides or none are painted:

Price formation

The total price of roofing corrugated board depends on the following sheet parameters:

• The presence of a zinc coating.
• The presence of color.
• The presence of a protective coating.
• The length and width of the sheet.
• Sheet thickness.
• Corrugation height.
• Appointment of corrugated board.

Here is a rich choice in front of you!

What kind of corrugated board can be covered with a roof?

And now about what types of corrugated board are currently available specifically for roofing, and why one of them is better than the other.

There is a GOST regarding such coatings: "Profiles of building steel sheet bent with trapezoidal corrugations." It says that the thickness of the sheets should be from 0.4 to 0.6 cm.

In practice, most often, a profile sheet from 18 to 35 mm thick is used to finish the roof. Traditionally, this is the HC grade, which has the most optimal stiffness, rib height and sheet thickness.

In addition to the main options, the following sheets can also be used as roofing material:

• Galvanized profile without polymer coating. Costs 40% less, suitable for roofing outbuildings and garages.
• Ferrous metal corrugated board, also uncoated.
• Expensive and durable corrugated board made of non-ferrous metals: copper or aluminum. The rarest variant.

And even a kind of exotic. So, a special corrugated board for the roof happens:

1. Made by cold rolling.
2. Bent to desired shape.
3. Perforated.
4. With spectacular textured wood or stone embossing.

You can give preference to any option you like, as long as one important requirement is met: all products must have a quality certificate.

Sheet format

So, the design and shape of the profiled sheet has been chosen, it remains only to build the crate and determine the dimensions of future sheets:

And at this stage, let's deal with the terminology a bit. So, the "waves" go across the slope, and the "rows" along, and the distance between the rows is called the pitch of the corrugated board. But “modules” are sheets that consist strictly of six waves and have a step of 35 cm. Now you understand what single-module sheets on the market are, three-module, six-module and ten-module, which are also called “warehouse” in another way. Those. standard.

Of course, the roof of your house is not the roof of a warehouse according to Soviet drawings, and such “modules” cannot be laid out to zero, without residues and the need for cutting. That is why it is fashionable today to order roofing sheets in individual sizes, although, of course, you will have to pay extra for this. But the risk of corrosion on the roofing will be significantly reduced. In the everyday life of roofers there is also such a term as "lower cut". These are the lowest 50 mm of the sheet, which can be measured from the cut line to the crest of the wave. This value is 50 mm for standard stock sheets and up to 300 mm for special orders.

By the way, if the slope on your roof exceeds 6 meters in length, then, so that the corrugated board does not bend, it is better to order the material twice as short. For example, 3 meters each, taking into account the overlap, which for corrugated board is 100-150 mm. Every second wave will need to be fixed under the transverse pattern

What to do with sheets after purchase?

The first step is to properly transport:

Yes, and you also need to store the purchased corrugated sheets correctly. It is not uncommon for roofing material to be brought to a construction site or ahead of time or before the rainy season. Then it is better to find a flat place, and fold the sheets so that there are bars of 20 cm in cross section between them. Each stack contains no more than 10 sheets! You don't want this expensive material to deform and become unusable before installation begins, do you? Therefore, approach this issue with responsibility.

If on the spot it turned out that some sheets still have to be cut - do not worry! You can easily handle this on your own. For this purpose, use ordinary metal shears (as an option - a hacksaw) for carving along the length, and for the formation of bevels - an electric saw with special teeth made of hard alloys. But grinders with abrasive wheels will lead to corrosion of metal sheets.

How not to run into fake corrugated board?

So we figured out which corrugated board to choose for the roof of your house. Agree that roofing is an extremely important stage in the construction of the whole house. Walls and even foundations are much easier to repair than roofs because of the height. Therefore, when buying a metal profile, be sure to find out what raw materials these sheets were made of. You don't burn with the desire to see this on own roof in a year?

First call: price

The most dangerous period in terms of fakes in the construction market is summer. It is at this time that everything is built - the weather and air temperature allow. It is quite difficult for large manufacturers to plan sales volumes and it is not uncommon for a corrugated board to be in the midst of construction works no longer in stock. This is when small handicraft firms come into play. They buy wherever they can find the cheapest raw materials - Chinese, Indian or domestic, stored for a long time in inadequate conditions and almost decomposed. Sheets are produced on home-made simple machines, which are then sold on the market as “quality material”, with a small difference in price. Most often, the buyer is offered a discount of 10-20% of the cost of “the same corrugated board as a large manufacturer, why overpay for a brand?”.

So the first warning sign is the price. And it is formed depending on what was the purchase cost of raw materials - one ton of galvanized steel roll. From expensive raw materials, expensive corrugated board is produced, and from cheap - cheap. And then the price is already formed from how thick the sheets themselves will be. That is why, if a manufacturer offers you a relatively inexpensive corrugated board of normal thickness and with allegedly high technical characteristics, only cheap raw materials, Chinese or Indian, but not European, could be used. You can check your guesses at the office of the trading company by asking to see certificates and taking samples of the material.

But the fact that the raw materials themselves cost the scammers literally a penny, the buyer may not know - for him, after all, the price is sometimes set not at all a penny ...

Second call: promises

The second wake-up call is promises to fulfill the order too quickly, i.e. make sheets of the right size. Yes, there are always intermediaries between any major manufacturer and buyer - at least two. And it is from them that you order the goods. But in any normal company they will not bring it to you earlier than 10 days, but on the market they will promise much faster, after which they will break the deadlines and explain their behavior by a breakdown of some line.

Third bell: fast delivery

Even more often, the buyer is forced to buy ready-made sheets, only at a price much higher than standard ones are sold. In fact, the seller of high-quality material, who cooperates with a real manufacturer, will immediately say that it takes time and will not impose what has already been lying around.

But the biggest deception is that fake corrugated board is also thinner than the declared parameters. After all, 99% do not have a micrometer available and certainly do not know how to use it, and as a result, the roof of their house is covered with material much thinner than required by the rules. The deviation that is permissible is only 0.05 cm, i.e. 5 cm, but no more. If you run into scammers, get a micrometer and get ready for a shock.

But we hope that our advice in choosing corrugated roofing will help you avoid all these annoying mistakes, and your roof will be the brightest and highest quality in the area!

Lightweight, durable, inexpensive and attractive in appearance, corrugated board is very popular today in the organization, construction of fences, and warehouses. The material owes such a wide scope of use to its structure and the presence of a profiled sheet of different thicknesses and widths, with different coating. How to understand the huge modern assortment and choose a corrugated board that will meet the requirements as much as possible. Our advice will help you navigate and approach the purchase of this building material fully armed.

No. 1. What is the corrugated board made of?

Profiled sheet, or corrugated board- this is a cold-rolled steel sheet coated with a protective layer of polymer, zinc or aluminum. The profile of flat sheets is attached to the forming shafts of machine tools, it can be in the form of waves or trapezoids. Its purpose is not only to improve the decorative qualities of the material, but also to obtain additional strength properties.

The main advantages of corrugated board:

• corrosion resistance, negative impacts environment;
• durability. Service life reaches 50 years;
• strength;
• fire resistance;
• ease of installation and maintenance;
• a wide selection of colors;
• affordable price.

No. 4. The main types of corrugated board

For roof covering, fence construction or facade cladding, it is better to choose different materials. The huge popularity of the material was the catalyst for the emergence different types of corrugated board:

Wave height is such an important indicator that it is indicated in corrugated board marking. You can understand what kind of material is in front of you by the letter designation that speaks of the type, and the number that follows it. The figure means the wave height expressed in mm. For example, the designation C8 indicates that in front of you is a wall corrugated board with a wave height of 8 mm.

Sometimes other parameters are indicated in the marking. In this case, the second number will indicate the thickness of the sheet in mm, the third - the width, and the fourth - the length. For example, corrugated board marked C8-0.5-750-11000 will have a thickness of 0.5 mm, a width of 750 mm or 75 cm and a length of 11 m.

No. 5. What are the most popular types of corrugated board

Manufacturers offer corrugated board with very different parameters. Some even offer customization, but The most popular are these types of corrugated board:

• C8 mainly used for wall cladding. There are examples of its use as a roofing material: of course, it is better to choose a different type of corrugated board, since for this it is necessary to equip a continuous crate, and most importantly, a roof with a large slope;
• C10 also used for decorating walls, as well as for erecting fences with a height of not more than 2.5 m;
  
• C18 suitable even for the construction of small architectural forms. If there is a need to equip the roof from just such a material, then the crate step should be 40 cm;
• C21 used for the construction of temporary structures, the construction of fences. Suitable for roofing, lathing pitch from 40 to 80 cm, depending on the slope angle;
• C44 suitable in cases where it is necessary to build a fence of increased strength, build a hangar, garage or. Due to the increased strength, it allows you to equip reliable roofs, even with a lathing step of up to 2 m, but it is still better to use a lathing with a step of 50-100 cm;
• H57 ideal for roofing, sometimes used as fixed formwork or fence material. The step of the crate can reach 3m;
• HC35 universal in use, often has an additional ribbed surface. When arranging a roof from such a corrugated board, the lathing step is 1.2-1.5 m;
  
• HC44 often used in roofing, it has additional stiffeners, which distinguishes it from C44 and makes it more durable and resistant to stress. Lathing pitch - 2.6-3 m;
• H60, despite the marking, is widely used in the arrangement of the roof, it can be the basis for a soft roof or independent material, is used in the arrangement of fixed formwork. The crate for such material is performed in increments of 3 m;
  
• H75 belongs to the most popular types of a professional flooring as differs in universality in use. In terms of strength, one of the best, which is achieved due to additional strength ribs. The step of the crate for such material is 4 m;
  
• H114 has two additional stiffening ribs, due to which the material has phenomenal strength and can be used for arranging roofs with a crate step of 6 m.
  

No. 6. What else to consider when choosing?

It is important to immediately decide on the required shade of corrugated board, as manufacturers offer about a hundred different colors. Wherever the material is used, for arranging a roof or constructing a fence, it is important that it harmonizes with the surrounding objects, fits into the chosen color scheme and does not merge with the environment.

When buying, it is important to visually inspect the material for compliance with the exact geometry. Compliance of all parameters with the declared ones is a guarantee of simplicity in work and a neat appearance of the finished object.

No. 7. Which manufacturers can you trust?

Decking is produced in many European countries, in China, South Korea, India and Turkey, production is also widely developed in Russia. The products of domestic factories are competitive, outperforming many Turkish and Chinese companies in terms of quality. Let's consider the proved world and domestic producers of a professional flooring.

TOP 5 global manufacturers of corrugated board

Well-known Finnish company offers huge selection building materials, including corrugated board. Available in a variety of thicknesses and finishes. The manufacturer's professional flooring is in great demand all over the world, and offices and representative offices are located in all corners of the planet.

ArcelorMittal

The company originated in Luxembourg in 1976 as a small production, and today it is one of the largest producers of steel and steel products. Production facilities are located in several European countries, products are delivered all over the world. The structure of production includes its own research center, where they are constantly working on improving products. The professional flooring of the company enjoys great demand in the domestic market.

This Latvian company started its activity only in 2007. Today it is a huge modern enterprise, producing a huge number of products from sandwich panels to roof hatches. The assortment includes corrugated board of various types and sizes, there are also all the necessary components on sale, it is possible to carry out production under the order so that there is a minimum of waste during construction work.

U.S. Steel

Production is carried out in North America and Central Europe. Over the decades of manufacturing steel products, the company has become a world leader, and today it is well known in many countries. The professional flooring of this manufacturer is also sold in Russia, but its prices are quite high.

A Polish company that has become a giant in the industry and operates in many European countries. Everywhere modern equipment is used, careful control is carried out. Decking is one of the key areas of the company. Not only wall and roof decking is produced, but also special-purpose material, incl. transparent and perforated. Russian market only gets acquainted with the manufacturer's products and has already appreciated its advantages.

TOP 5 Russian manufacturers of corrugated board

Metal Profile

The leader of the domestic market for the production of thin-sheet steel products. The company has been operating on the market for 18 years, and has established production not only in Russia, but also in neighboring Belarus and Kazakhstan. The high quality of the manufactured products is achieved through the use of modern equipment and high-quality raw materials. Decking is produced in various types from C8 to H114, so the consumer gets the opportunity to purchase high-quality material with the necessary parameters and an affordable price.

Steel-Plass

The company has been operating since 1997 and since then has occupied a significant place in the domestic market as a manufacturer of corrugated board. Several production lines, equipped with modern equipment, the company's products are purchased by both large construction organizations and individuals. The professional flooring is made from brand C8 to H158, has different coloring and a covering.

The company specializes in the manufacture of metal roofing materials. The main place in the production is occupied by corrugated board, which is manufactured here on the latest Polish equipment, taking into account all state standards. Decking from C8 to H114 has excellent performance, and there are a huge number of color options.

ProfSteelRented

The company is considered one of the leaders in the production of corrugated board. To obtain high-quality products, European equipment is used here, and steel is purchased from the best domestic and world manufacturers. The assortment includes corrugated board of different colors, with different coatings and with wave heights from 8 to 114 mm, so any consumer will be able to find the material that is needed.

Chelyabinsk specialized plant "Profnastil"

The company has been operating since 1974 and today specializes in the production of corrugated board. The workshops use Italian, German and Finnish equipment, which allows you to get quality products at affordable prices. The pride of the company is a modern automatic line for applying protective polymer coatings, which becomes the key to the durability of the manufactured sheets.

The nomenclature of the profiled sheet is very extensive, so it is not always clear which corrugated board is better in your case. It is difficult to make a choice, since the profiled sheet differs not only in purpose, but can also have different technical characteristics, coating, quality, color and, of course, price.

Two of dozens of possible types of corrugated board: with a pural coating and textured wood

This article is devoted to exactly what a professional sheet is and how to choose it correctly for a particular task.

What is the purpose of corrugated board and what should you pay attention to when choosing?

The profiled sheet is used in construction for a huge number of works: from fixed formwork to wall cladding and roofing. Therefore, first of all, it is divided by scope into the following types:

• wall (marked with the letter C);
• carrier (marked with the letter H);
• universal (marked with the letters HC).

The listed groups are what types of corrugated board are not only for their intended purpose, but also, in fact, according to their characteristics, since they strongly depend on where the material is specifically intended to be used. So, the bearing profiled sheet can withstand much greater loads than the wall one, due to the greater height of the wave, the thickness of the metal, as well as the presence of additional stiffeners.

Its useful to note,

There is no special roofing corrugated board or fence. These are all marketing names that usually denote one of the listed types with some kind of feature. For example, with a capillary groove to capture and remove moisture.

The division of the profiled sheet according to its purpose is rather conditional. Which metal profile is better in each case depends on where it is planned to be used. In particular, the wall profile can be used for roofing, and the carrier profile can be used for the construction of high fences in areas with high wind loads. Therefore, when choosing a profiled sheet, you need to look at its technical characteristics, and not the type.

Let us take as an example the middle zone of Russia, territories without strong winds and heavy snowfalls. Under these conditions, with a roof slope of more than 30 ° C, as a roofing coating is suitable S-21 corrugated board, although initially this material was not designed for such an application.

How to choose corrugated board according to the thickness of the metal?

The profiled sheet is made of metal, with a thickness of 0.4 to 1.2 mm. The thicker the metal of the original workpiece, the higher the bearing capacity of the corrugated board. The service life of the profiled sheet also depends on the thickness of the metal.

But at the same time, with an increase in the thickness of the metal, the weight of the corrugated board also increases, which neutralizes one of its main advantages - ease of installation and low load on the truss system. The cost of the profiled sheet also increases, and very significantly.

Therefore, the decision on which to choose a corrugated board in thickness is usually made in favor of replacing the low-profile thick steel material with a profiled sheet with a higher wave height. This is beneficial both in terms of price and based on the load on the truss system.

Types of protective coating for corrugated board

The protective coating of a profiled sheet significantly affects its service life. Since durability is one of the most important criteria for any building material, you need to know what types of coatings a profiled sheet can have, how to choose the right one for your task and in what cases you can save.

The most inexpensive, but at the same time, the most short-lived coating is zinc. Decking with a protective layer of this material is used for the construction of temporary fences, formwork, as well as for some outbuildings. Such a profiled sheet is practically not used by private developers, since its service life is only 15-25 years, and it quickly loses its appearance.

An example of a profiled sheet with an embossed coating of 200 µm and a service life of 40-50 years

Alu-zinc coating is more reliable; in addition to zinc, it contains 55% aluminum and 1.6% silicon. A professional sheet with such a coating lasts much longer than with a simple zinc one, and is most often used for the manufacture of prefabricated garages. Much less often it is used for the construction of hangars and warehouses. Again, such material is practically not used by private developers.

The most expensive, but also the most durable, is a polymer coating. This material is mainly used in modern construction, as it has a lifespan of 25-50 years and can be in almost any color.

Different polymers can be used as a protective layer. If you are interested in the question of how to choose the right polymer-coated corrugated board, then you should focus on the price and operating conditions of the material. The fact is that the listed polymers differ in chemical composition and, as a result, resistance to various external influences.

In Russia, a profiled sheet with a protective coating of the following materials is most often used:

1. Polyester. A professional sheet with such a coating is the cheapest. It is not afraid of high temperatures, has a service life of 25 years, but is not resistant to mechanical stress. Therefore, during transportation and installation, it is necessary to observe increased accuracy, since the polyester layer is very thin and easily scratched.
2. Pural. This material is extremely wear-resistant and its service life reaches 40 years. In addition, it is resistant to ultraviolet radiation, is resistant to chemical and mechanical stress, as well as temperature extremes. Since it is quite expensive, pural is usually used in aggressive environments: on the sea coast, in industrial areas, in areas with increased solar activity or humidity.
3. Plastisol. Very wear-resistant coating, which is applied in a thick layer and perfectly withstands aggressive environments. It burns out in the sun, and also does not tolerate heating to high temperatures. Therefore, it is not recommended to use it in hot regions. The color scheme is usually light, texturing is possible. It is used in the regions of the north and the central strip in areas with aggressive climatic or man-made conditions.
4. PVDF. Decking with such a coating practically does not fade, is resistant to chemical and mechanical stress, and has a long service life. However, it is very expensive, so it is rarely used.

Thus, to summarize, during construction in the absence of high temperatures and aggressive environments, ordinary polyester is quite suitable. But if you are building, for example, on the seashore, then you should pay more attention to the question of which corrugated board to choose so that it lasts as long as possible.

Criteria for choosing high-quality corrugated board

The above shows how to choose a metal profile based on the fundamental aspects: brand, thickness, coating. However, there is also the question of the banal quality of the material.

To protect yourself from fakes, substandard products and simply unscrupulous manufacturers, you need to follow just a few simple rules.

Primarily, carefully inspect the material before buying. It must meet the following criteria:

1. The surface of a high-quality profiled sheet should be smooth and free of dents and any other external defects.
2. The edges of the sheet should be even, without burrs.
3. Coloring should be uniform, without sagging and chips.
4. When bending the sheet, the polymer layer should not break or crack, and the profiled sheet should easily take its previous shape when unbent.

If you buy a large lot, the sheets can be inspected selectively, but very carefully and at least a few randomly from one package.

Necessarily pay attention to whether there is a guarantee for corrugated board from the manufacturer, and for how long it is given. If the manufacturer claims that the service life of the profiled sheet is 25 years or more, but gives a guarantee for a year or does not give it at all, this is a serious reason to refuse the purchase.

Always check certificates of conformity, which are sure to come with each batch of corrugated board. Of course, their presence does not guarantee that in front of you is material of excellent quality, since everything is bought and sold in Russia. But this way you can protect yourself from very low-quality materials that do not have these certificates.

And the last - consider the reputation of the seller. If you buy material on the market in a small store, then the probability of buying a low-quality item is incommensurably higher than if you purchase a profiled sheet in a large building hypermarket. Although in the latter such a probability is also far from zero. It is most reliable to work with those sellers who were recommended to you by your relatives or friends after a successful personal experience.

Understanding why corrugated board is better than other building materials is only the first step in studying this material. Having decided, you need to make a choice within the material itself, which corrugated board is better for the roof of the house.

The requirements for roofing corrugated board are more stringent than for wall ones, which means you need to know what properties it has, what to look for when buying or ordering, taking into account the characteristics and dimensions of the corrugated sheet.

The material was prepared for the site www.site

What kind of corrugated board to choose on the roof of the house?

1. Scope and purpose of roofing corrugated board

The choice of corrugated roofing begins with determining the location of its installation. It serves as a starting point and determines the criteria for selecting a sheet and, ultimately, the cost of the project.

Due to its high performance and reasonable price, corrugated board is used as a roofing material in private construction for:

• country, country houses, cottages;
• garage and outbuildings;
• gazebos, verandas, awnings;
• temporary buildings.

Naturally, the requirements for choosing a roof for each of the objects will be different. For example, when choosing corrugated board for a residential building, it is required to take into account the coverage area, roof configuration, number of slopes, average annual rainfall, installation complexity, sheet replacement complexity and other factors.

At the same time, the roof of the canopy over the porch or front door can be made of a cheaper or more practical material. A small area provides high maintainability of the roof, and the level of precipitation does not have a significant effect on the roof.

2. Height of corrugated board wave

If the choice of corrugated board for a fence or a wall begins with studying the types of coverage, then for roofing, the main parameter will be the wave height, which determines two important parameters:

• rigidity;
• throughput.

Both values ​​​​have a direct impact on the life and quality of the roof from corrugated board. The larger the wave, the greater the rigidity and throughput, but the more expensive the cost of the roof. To understand what kind of corrugated board is needed on the roof, it is necessary to take into account the angle of inclination and the area of ​​\u200b\u200bthe slopes.

Distinctive properties of roofing corrugated board:

• all types of corrugated board intended for installation on the roof have a wave height of over 20 mm. Deeper profiling eliminates the possibility of water getting under the sheet;

• since the roofing sheet is designed to be installed on the roof, this explains its configuration. Unlike wall, it has a wider bottom of the wave, which provides a free stack of water and increases the throughput of the roof;

• it is required to take into account the angle of inclination of the surface intended for covering. The smaller the slope of the roof, the higher the wave height of the corrugated board should be;

• the angle of inclination determines the amount of overlap;

When installing high-wave corrugated board on a roof with a small angle of inclination, it is necessary to provide an overlap in one wave.

When installing a small-wave - the absence of a high wave can be leveled by an overlap in two waves. It should be noted that this significantly increases the cost of a corrugated roof.

The longitudinal overlap also depends on the angle of inclination and requires compliance with the same calculations when overlapping, the smaller the angle, the greater the amount of overlap.

• the presence of a capillary groove. It serves as an additional barrier to prevent the ingress of melt and rain water under the profiled sheet, as well as to protect against condensate that appears during temperature changes. At the same time, the groove is not a panacea, and will not save the roof from leakage if the wave height is chosen incorrectly.

The capillary groove is profiled along the entire profiled sheet. During installation, it is closed by a covering wave of the next metal profile sheet.

Manufacturers offer different types of corrugated board with wave sizes from 20 to 114 mm. At the same time, corrugated board with a wave height of more than 44 mm is rarely used in private construction.

3. Dimensions of corrugated roof

The technical characteristics of the roofing corrugated board are shown in the table (dimensions: thickness, width, length, weight, height and wave pitch).

Characteristics and dimensions of C21 corrugated board

4. Type of corrugated board coating

Decking is profiled sheet metal having a protective coating that protects the iron core of the sheet from rust.

When choosing which corrugated board is better to use for roofing, you need to know that there are two main types of corrugated board:

Unpainted corrugated board

This category includes galvanized or aluminum-galvanized profiled sheet, which has an estimated service life of 5-15 years. Manufacturers rarely provide a guarantee for more than 5 years. At the same time, the galvanized aluminum material will last longer, because. zinc in this case will weather at a slower rate, which means that the core will remain protected longer.

When choosing unpainted corrugated roofing, you need to know that its service life depends on the thickness of the protective layer. According to GOST 24045-2010, the thickness of the galvanized coating should be 275 g/m2 or at least 90 microns.

Typically, galvanized corrugated board is used for roofing temporary buildings, sheds and outbuildings.

Painted corrugated board

It has more degrees of protection in the form of additional layers of polymer coating.

Depending on the type of finish coating, manufacturers provide a guarantee for the material up to 25 years. The duration of the warranty and the estimated service life depend on the type of coating:

• roofing sheet coated with polyester (PE) glossy or matte. The thickness of the glossy PE layer is 20 microns, matte - 35 microns. The service life and properties are approximately the same, only the appearance differs. PE is strong, slowly and evenly burns out, suitable for use in the temperature range from - 30 to + 80 ° C;

• roofing sheeting with pural coating (Pural). Coating thickness 50 µm. The coating is based on polyurethane, which gives it resistance to abrasion;

• roofing sheeting coated with plastisol (PVC). The thickness of the plastisol is 200 microns.

• polydifluorionad (PVF2). It is developed for operation in difficult climatic conditions. The most durable coating for corrugated board, however, and the price of PVF2 corrugated board is the highest.

5. The thickness of the corrugated board for the roof of the house

Manufacturers offer profiled sheets with a thickness of 0.37 to 1 mm.

What thickness of corrugated roofing will be optimal?

Users and craftsmen advise using 0.45-0.5 mm. The choice of such a thickness is justified by the fact that a more significant wave height, compared to wall corrugated board, provides the roof with the necessary rigidity. You should know that with heavy snow loads it is better to give preference to thicker metal. Some manufacturers provide stamping (additional stiffening ribs on the surface of the sheet) which increases the longitudinal rigidity of the corrugated board.

Advice. When choosing the thickness of corrugated board, it should be taken into account that the deviations in metal thickness are +/- 0.1 mm (GOST 24045-2010 and EN 10143).

6. Color of corrugated roof

Color does not affect the technical parameters of the corrugated board. However, when choosing corrugated board, one should proceed from the color scheme of other buildings on the site, facade decoration and other factors so that the roof of the house does not stand out from the general design concept. The colors of the corrugated board correspond to the RAL palette (from the Finnish manufacturer Ruukki - the RR palette), which simplifies the selection of colors.

Note. When choosing a color, you need to take into account that any coating is exposed to ultraviolet radiation (fading in the sun). Therefore, if it is necessary to replace one sheet, a mismatch in shades is not excluded. The more time has passed since the installation of the roofing corrugated board, the more it will manifest itself.

• profile view. This is the easiest way to determine which roofing sheeting is best. Of course, one that does not have defects, chips, peeling or sagging of paint, "stretch marks", etc.;

• a clear geometry of the dimensions of the roofing corrugated board. The manufacturer is obliged to provide the opportunity to measure each profiled sheet in terms of thickness, length and width. Deviations greater than the minimum allowable (according to GOST 24045-2010) - a sign of a violation of manufacturing technology. Even knowing how to properly fix the corrugated board to the roof, it will not be possible to mount obviously defective sheets (non-standard) with high quality;

• covering wave geometry. The first wave of the top sheet should very accurately cover last wave bottom sheet. In this case, the likelihood of water getting under the sheet will be minimized;

• edge quality. Cutting (cutting) of corrugated board in the factory is carried out with a special device - a guillotine. Such a cut is very accurate and even (without chipping and influx of paint). This is an indicator that the sheet will not begin to rust from the edge;

• roof deck strength. demonstrating color scheme the seller will most likely show you a selection of round swatches. This shape was not chosen by chance, a round sample is more difficult to bend than a square one. Therefore, the sheet seems durable.

In practice, you can check the strength of a corrugated sheet in a simple way, with a little effort: with a slight bending, the profiled sheet will easily return to its previous shape, and with strong pressure, the bend will remain.

• availability of specifications and layouts of corrugated board. This does not apply to the choice of a professional sheet directly, but it is necessary when buying material for the entire roof. After all, you need not only to know how to choose a corrugated roof, but in what order should the purchased sheets be placed, especially in the case of a roof of complex configuration;

• corrugated board packaging. Its presence is important only at the stage of storage and transportation. It must be removed before installation. After prolonged exposure to ultraviolet radiation on the protective film on the profiled sheet, it cannot be removed and significantly spoils the appearance of the roof;

• guarantees and certificates for profiled sheets. They allow to judge the reliability and responsibility of the supplier.

8. Price of corrugated roofing

Deciding which profiled sheet for the roof is better, and being guided only by the price of the material, is a deliberately wrong option. The cost of corrugated board consists of the quality of the metal, its thickness, type of coating, the image of the manufacturer, the quality of the equipment used for profiling, storage and transportation conditions. All of these factors add to the cost while maintaining proper sheet quality.

If the price of corrugated board is below the market, this can only be explained by a decrease in the thickness of the metal, the thickness of any of the coating layers, and violations of production technology. Such a proposal should be treated with caution. After all, it is much more difficult to replace a sheet of roofing corrugated board than, for example, sections of a fence.

9. How to choose the right roof decking - video

10. Pros and cons of corrugated roofing

Parallel comparison of the advantages and disadvantages of a profiled sheet for roofing.

Advantages

• low price of the material;
• the ability to do the installation yourself;
• resistance to the influence of environmental factors;
• resistance to corrosion (in the absence of mechanical damage and defects in the core of the sheet);
• light weight;
• safety (fire and environmental);
• the ability to use for mounting on a slope of any configuration and with any angle of inclination (even completely flat);
• the ability to set the direction of water movement from the roof;
• aesthetic appearance of the building.

disadvantages

• corrugated board makes noise during rain and even more so, hail (in order to eliminate it, it is advised to lay OSB boards or OSB plywood instead of lathing);
• condensate accumulates on the surface (it is necessary to make good vapor and waterproofing);
• the profiled sheet is prone to the accumulation of static electricity (grounding is required);
• rust appears in the places of drilling and cutting (carefully treat such places with paint or movil).

Conclusion

Summarizing, we note that it is possible to choose corrugated roofing without having the experience of professionals, it is quite critical of the seller’s slogans, familiarize yourself with GOST and know for sure that the phrase “for the price and the product” characterizes the material in the best possible way.

Among the wide range of building materials, the most common is the roofing profiled sheet - a modern coating, without which it is difficult to imagine both private and industrial construction. In the first case, it acts as a roofing material, in the second it is a topcoat. Below is his detailed description and the installation technology is considered.

Varieties of profiled sheet

Construction material at a relatively low cost - the profiled sheet for the roof is made using rolled galvanized steel sheet.

The resulting base can:

• not treated with any coating;
• have a polymeric, color coating.

Depending on the purpose, the texture of the profiled sheet can be:

• wavy;
• ribbed trapezoid.

Typically, developers involved in roofing works, select the first material type.

Profiled sheets are characterized by high resistance to adverse conditions, as follows:

Roofing finish will look much more attractive if you choose a polymer-coated profiled sheet in a color that is presented in several options in the photo.

The uniqueness of the performance characteristics of the material

The profiled sheet is endowed with special operational properties:

Roof repair

One of the most important requirements, when deciding how to choose a profiled sheet for a roof, is the slope of the roof slope - it is desirable that it be minimal (read also: ""). In order for everything positive properties roofing were implemented to the full, it is important that the slope of the slope of the structure is from 8 degrees.

Profile sheet is widely used:

• for the arrangement of residential buildings;
• in the construction of large industrial facilities.

When comparing technological characteristics coatings, the question often arises, for example, how does a profiled sheet differ from corrugated board or other modern coatings. First of all, the difference lies in the execution with a different allowable slope.

Rules for calculating material consumption

To avoid the appearance of transverse joints when laying profiled sheets, improve the moisture-proof properties of the roof, reduce labor costs for repair work, it is recommended to select material with a length equal to the value of the slope.

The standard slope length is up to 12 m, but if it exceeds the indicated norms, then a composite slope structure will be required, that is, the roofing profiled sheet will overlap by 20 cm with each subsequent sheet. To start work, any lower corner can be selected, and all the resulting joints are sealed.

Calculations of the required amount of material are made on the basis of:

• building perimeter;
• roof slope length.

If you have never done such work, then you can use the services of a company that will offer suitable species profiled sheet for the roof, perform their consumption, provide information on the necessary additional and fasteners.

Roof repair with profiled sheet

The installation of the profiled sheet has a clear structure, subject to which even a novice developer will cope with the work. Due to this, often, many lay the roofing on their own, given the small.

One of the positive factors in the use of profiled sheets is the possibility of year-round installation:

• material cutting is allowed at any temperature;
• minimal waste is generated.

Recall that the laying of the profiled sheet on the roof is carried out in accordance with the rules indicated earlier.

The quality of laying sheets and the durability of the entire roof directly depends on the amount of overlap at different slope slopes:

In the case of a repair of a roof whose slope is less than 12 degrees, sealing is mandatory for all vertical and horizontal joints.

How to fix sheets

For a crate is equipped, the basis of which is rafter system. Due to the low level of load on the base of the house and the foundation, it does not exceed the permissible norm, which means that additional strengthening is not required during installation.

Standard fasteners for profiled sheets are special screws, complete with gaskets that prevent water from leaking into the under-roof space. The screws are driven by hand or with any suitable equipment into the deflections of the corrugation.

The size of the screws depends on the purpose of the fastening:

• for total area coverings they should be 35 mm long;
• for fastening knots - 80 mm.

How to evenly mark the corrugated board for trimming, look at the video:

Until the main sheets are fixed, the following is performed:

• laying waterproofing;
• insulation layer device;
• vapor barrier;
• installation of a ventilation gap is provided.

The presence of all these elements will ensure the creation of a durable dry and warm roof.

The list of basic operations for the arrangement of the roof:

1. The location of the profiled sheet is selected based on the fact that the fasteners are located where the deflection of the sheet is connected to the lath of the crate.
2. The upper and lower laths of the crate are subjected to strong wind loads, therefore, to improve their strength, fastening is carried out in each wave.
3. Sheets located in the middle of the cover can be fixed through the wave.
4. The step size of the fasteners on the longitudinal slopes ranges from 300 to 500 mm.
5. At the edges of the roof, the roof covering must be fixed in each plank of the batten.
6. For a secure fit of two sheets, the joined waves are fastened with an offset of the fastening points by 5 mm.

In addition, for high-quality fastening, a sealant for a profiled sheet is used, which is placed between the crate and the material. Experts recommend connecting the extreme shelves of the coating with rivets, the diameter of their hats should be 3.2-6.5 mm.

Lathing for profiled sheets

Since the crate is considered the basis for the profiled sheet, and the service life of the entire structure depends on its durability, we will pay special attention to its arrangement.

1. Before equipping the battens, waterproofing should be made, on which wooden beams are laid.
2. The optimal section of the bar for the crate is 50x50 mm.
3. In the gap between the ridge and the cornice, a counter-lattice (separate bars) is placed, to which wooden slats are horizontally nailed.
4. When installing a profiled coating, boards with a section of 32x100 mm will suffice.

Depending on the slope of the roof and the height of the selected profiled sheets, a crate is constructed:

• If the sheets are 20 mm in height, and the roof slope does not reach 15 degrees, then a continuous crate will be needed;
• When using a profile with a wave of 44 mm, as a rule, this material is marked with the letter H, the crate pitch should be 500 mm;
• For a roof with a slope of 15 degrees, a crate is constructed in increments of 350-500 mm. More accurate dimensions are determined based on the height of the profile wave (read also: "").

As end planks for the crate, boards are selected that exceed the dimensions of the main bars by the height of the coating.

The market offers various brands of profiled sheets, differing only in some characteristics, but basically the roof of this material is light and durable. Due to the uniqueness technical properties, in particular, excellent wear resistance and tightness, roofing from such a material has become widespread in the construction market.

When choosing a material for the consumer, it is important to have the optimal ratio of quality and cost of coating, which is typical for corrugated board, the installation of which does not require special skills and is carried out quickly enough, and a positive result from it will be noticeable for many decades.