Krympress reports:
The corrugated board remains one of the most popular roofing materials in Russia due to the optimal combination of price, quality and durability. When choosing a material for a roof of a private house, it is important to understand what types of corrugated board exist and how they differ from each other — Astrego.ru. On specialized sites, you can find a wide range of corrugated board of various brands and coatings from trusted suppliers.
The main classification of corrugated board by purpose
All types of profiled sheets are divided into three main categories according to GOST 24045-2016:
Wall corrugated board (c) — Designed for wall cladding, the construction of fences and fences. It has a small profile height (8-21 mm) and relatively thin metal. For the roof it is used limited, only on simple structures with a frequent crate.
Carrying corrugated board (n) -Designed for serious loads, has a high profile (57-114 mm) and additional stiffener ribs. It is used for roofs of industrial buildings, fixed formwork and structures with large spans.
Universal corrugated board (NS) — combines the properties of wall and bearing types. The profile height is 20-44 mm, which makes it the best choice for the roof of private houses and low-rise construction.
Types of profile in form
Wave profile
It is characterized by smooth bends, ensures the savings of the useful area of the sheet, but has a low bearing capacity. It is mainly used for decorative purposes and light structures.
Trapezoidal profile
The most popular type of profile, providing the optimal balance between strength and a useful sheet width. The trapezoidal form creates effective stiffeners.
Sinusoidal profile
It has rounded transitions, which gives the material additional strength during bending. It is often used in structures where high rigidity is important.
Marking and technical characteristics
In the marking of the corrugated board, the figure after the letter designation indicates the profile height in millimeters. For example, C21 means a wall cornfield with a wave height of 21 mm.
The main technical parameters:
- The thickness of the metal: from 0.35 to 1.2 mm
- Working width: depends on the height of the profile (the higher the profile, the less working width)
- Sheet length: is made at the request of the customer from 0.5 to 12 meters
Popular brands of corrugated board for the roof
C20 (C21)
The most popular roofing brand for private construction. The profile height of 18-21 mm provides sufficient stiffness and good water flow. Suitable for roofs with an angle of inclination from 12 degrees.
NS35
Universal material with additional stiffeners. The profile height of 35 mm allows you to use it on roofs of medium complexity with an increased step of the crate.
H60
Durable supporting corrugated board for industrial facilities and complex roofs. It can be used for large spans between supports.
H75 and H114
Correspondence of increased strength for especially crucial designs. In private construction, it is rarely used due to the high cost and excess strength characteristics.
Types of protective coatings
Galvanized corrugated board
The basic version with zinc coating without additional coloring. It has a silver color and service life of 15-20 years. Used for temporary buildings and household structures.
Polyester
The most popular polymer coating is 25 microns thick. It differs in a wide color scheme, good resistance to UV radiation and affordable price. The service life is 25-30 years.
Matte polyester
Modification of ordinary polyester with a matte surface. It has a more noble appearance and better resistance to pollution.
Plazole (PVC)
The thickest coating (200 μm), which provides maximum protection against mechanical damage. It has a relief texture under the skin or wood. It is not recommended for the southern regions due to low temperature resistance.
Pural
A premium coating based on a polyurethane with a thickness of 50 microns. It is characterized by high resistance to atmospheric influences and mechanical damage. The service life is up to 40 years.
PVDF (PVDF)
The most expensive and durable coating based on polyvilidenfluoride. Provides maximum resistance to chemical influences and UV radiation. The service life is up to 50 years.
Recommendations for the choice of corrugated board for the roof
When choosing a corrugated board for the roof of a private house, several factors should be taken into account:
Climatic conditions: In regions with a high snow load, it is recommended to choose corrugated board with a profile height of at least 20 mm. For windy areas, the thickness of the metal from 0.5 mm is important.
The angle of inclination of the roof: For gentle roofs (up to 15 degrees), corrugated board with a high profile is necessary to ensure water flow. On steep slopes, you can use material with a smaller wave height.
The step of the crate: The higher the profile, the more the distance between the boards of the crate can be. This allows you to save on lumber.
Project budget: Wall corrugated board C20-C21-the best choice in terms of price-quality ratio. The universal NS35 is more expensive, but provides greater reliability.
Aesthetic requirements: Any corrugated board is suitable for modern architecture, it is better to choose a material with a small height of the profile for classic styles.
Features of the installation of different types of corrugated board
The styling technology depends on the type of corrugated board:
- Wall corrugated board requires a continuous crate or step no more than 40 cm
- Universal corrugated board can be mounted on a crate with a step of 60-100 cm
- The supporting corrugated board allows an increase in the step of the crate to 3-4 meters
It is important to use high-quality self-tapping screws with EPDM tabs and observe the mounting rules into the lower wave of the profile.
Conclusion
The choice of the right type of corrugated board for the roof depends on many factors: on the climatic conditions and design features of the building to the budget and aesthetic preferences. For most tasks in private construction, the optimal solution will be the universal corrugated board of the S20-C21 or NS35 stamps with polyester coating. When buying, it is important to pay attention to the quality of the material, the availability of certificates and the reputation of the manufacturer. A properly selected and high -quality mounted corrugated board will last several decades, providing reliable protection of the house from atmospheric influences.
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