Usually, when choosing materials for a roof, they try to find a high-quality and inexpensive option. Often people want to buy a roof deck. Which one to choose can be determined very easily. It is characterized by high strength at low cost, is durable. It is also highly appreciated due to the fact that during the manufacturing process it goes through all stages of the cold rolling procedure.
General characteristics
Many manufacturers offer their own configurations and varieties that corrugated roofing has. Which one to choose must be determined independently, as this is the buyer's task. It is necessary to select the best quality options that are distinguished by good properties and high performance characteristics. There are such varieties of corrugated board that can be attributed to the class of materials for roofing:
- Galvanized profile without a special polymer coating. It has the lowest cost. You can determine the difference by about 40%, when compared with materials with a paint coating. It is used as canopies, as well as, if necessary, the construction of garages and other outbuildings, and not for residential premises.
- Galvanized corrugated steel sheet. This material also has no protective coating.
- Material from non-ferrous metals. It can be made of both copper and aluminum.
- Specially adapted roof decking, which is very easy to choose, because it is designed for roofing structures and has the necessary protective coating. It may have the color, shape and size that the client wishes.
Features of corrugated board
Each type of corrugated board from the above has its own characteristics. They are distinguished by the height and width of each sheet, the ability to correct these parameters, the thickness of the coating, which is an important and decisive perimeter that determines the cost and positive qualities that specific sheets of corrugated roofing have.
For the construction of the roof, it is possible to successfully apply wall and facade corrugated board, in addition to the supporting one, since all these profiles withstand the necessary load that is imposed on the entire roof structure. The roof carrier, which is very easy to choose, differs in the shape of the sheets, since each of them has a capillary groove. This helps to quickly and efficiently remove rain and melt water from the roof. It should be remembered that the facade profile does not have such a groove.
Price and quality
When choosing corrugated roofing, prices should be coordinated with this particular feature, since the presence of a special groove allows you to perform a coating without any complications. Usually this material costs from 200 rubles. It must be remembered that a special groove for water drainage cannot bend, that is, it must be made of high quality material. Usually it starts from the ridge, and its end falls on the edge of the cornice. If you choose a cheap option, there is a risk of flattening the groove, which makes it an unnecessary detail on the roof.
Types of corrugated board suitable for roof construction
- RN-20. This type of corrugated board can be used not only for roofing, but also for fences, walls and other structures, which indicates the high quality and reliability of this material. There is a groove in these panels, which serves to ensure optimal flow of water from the surface. When this structure is being installed, a crate is necessarily performed, the step of which is 80 cm. It should be remembered that the working width of this sheet is exactly 110 cm. These parameters determine the dimensions of the corrugated board for the roof.
- S-21. This profile has been subjected to many studies, so experts say that in terms of stiffness it is suitable for almost any roof that can withstand even a significant load. If the flooring is carried out in accordance with all the rules, excellent protection against all kinds of rainfall is guaranteed. The step of the crate is necessarily exactly 80 cm. This determines the dimensions of the corrugated board for the roof.
- NS-35, 44. These profiles are used not only for the roof, but also if necessary to create a solid fence. They are distinguished by bright indicators of strength and rigidity. The second of these options has additional stiffening ribs, which increases its quality indicator and makes it more noticeable among other options. Often, developers say that this is the best professional flooring.
Key selection criteria
- Marking. Be sure to register in capital letters and numbers. They display data on all the basic characteristics of a particular type of corrugated board, so you should pay attention to them and quickly navigate if you need a quick choice.
- Appearance. To determine the quality indicator, you should focus on the evenness and smoothness of the material. Roof decking has different prices, approximately in the region from 170 rubles to 500 rubles apiece. It should not have noticeable dents or other defects. If there is a paint coating, it should be absolutely even, the shade on all faces should be the same. Be sure to check that there are no sagging or any chips.
- Cost. If the material can be called good or high quality, the price will definitely not be too low, and there is practically no possibility of any promotions or discounts. There is a possibility that the cost will be quite affordable or even attractive, so you should not focus solely on expensive models.
- Type of coverage. Galvanized corrugated board is evaluated only in the presence of a polymer coating, however, materials without it usually do not have a high indicator of durability. The paint layer is different in thickness or shade, which affects the decision to choose a specific material for the roof.
Marking corrugated board
It should be noted that only materials that have the letters C and H in the name can be selected from the materials for creating a roof covering . This guarantees the suitability of a particular product for participating in the creation of a roof structure. The second option is preferable, since it has the highest degree of rigidity. If we analyze the order of numerical values in the marking, we can accurately determine the wave height, as well as the width of each individual module.
Only that coating with a wave height of at least 20 mm can be considered a quality roofing material. The weight of corrugated board usually varies in the region of 4-5 kg. It is necessary to additionally consider the technical specifications or GOST, in accordance with which the production of corrugated board took place, and also compare the real properties of the material with those planned by the manufacturer. To verify the authenticity and quality of the product, you should familiarize yourself with its certificate.
Appearance
In addition to the color, shade and visual effect that the finishing coating of the corrugated board has, you should pay attention to its quality, since in a few years after installation it will be crucial. All properties of the material must be studied in detail so that after 5 years there is no need to carry out dismantling and re-coating. You should pay attention to the weight of corrugated board. It should not be lower than 4 kg.
How to identify flaws?
If the profile is poor, there will definitely be small cracks on it, the paint may peel off, and noticeable flaws or manufacturing defects are sometimes visible. If at least one of these shortcomings is discovered, such material does not need to be purchased, since over the years its appearance will only worsen. If you bend the corrugated board a little, you can determine its quality.
A solid product will instantly straighten up, and when using low-quality materials, the profile may linger for a while in the artificially attached position. Also, if you independently bend the site to its former position, then the optimal material will not show any signs of exposure, and poor-quality material can leave a small dent, which will immediately protect yourself from acquiring unsuitable products.