The characteristics of the C20 profiled sheet allow it to be used in some cases for arranging roofs, although it belongs to the group of wall materials. Like other types of corrugated and trapezoidal flooring, it is made from thin sheets of iron rolled on special machines. Due to this, the products acquire increased rigidity in the vertical direction. The material tolerates temperature drops and precipitation well, it is easily cut to the required dimensions. When purchasing flooring for construction needs, it is necessary to study the dimensions of the C20 profiled sheet.
Characteristics and scope
Requirements for the manufacture of material and its characteristics are regulated by Gosstandart and technical conditions... They prescribe what dimensions the C20 corrugated board should have.
Used for making sheets the steel is galvanized. Some brands have colored coating, which also has protective properties and increases the service life of the metal profile. Usually products come in bright juicy or dark colors. Other options are more often made to order.
- carrier;
- wall;
- combined.
They differ in the shape and dimensions of the profile, as well as in the presence of certain structural elements (grooves, additional stiffeners).
C20 refers to wall options, as indicated by the letter C in the marking. However, the technical characteristics bring it closer to universal models. Its wave height is higher than that of most other wall products, which, combined with sufficient rigidity, makes it possible to use it for the installation of unloaded roofs.
Lathing under the flooring of such a roof must be sufficiently dense. When using bearing stamps, its step is 1-3 meters, depending on the parameters of a particular product. On the sloping roofs (less than 15 degrees) her make solid... With a more pronounced slope, the maximum distance between the elements of the sheathing under the flooring C20 - 0.4 meters.
The material is suitable for arranging roofs in private construction, for utility and warehouse premises, some industrial buildings, shopping complexes.
Usually for roofs, products with a polymer coating are used - they last longer and look attractive. Application of galvanized sheet without protective layer more often practiced for temporary structures... At its budgetary price, it can last 10-15 years without losing quality when transporting modules. This allows you to quickly recoup the cost of construction work. Products with a polymer layer can be used for up to 35 years.
Since the sheets are long, the roof area can be covered by minimizing the number of joints. Thanks to this, the structure is sealed and the cost of insulating the lumens is reduced.
In addition to the roofs themselves, various kinds are made from the sheet. awnings and canopies.
This option works well and for installation of fences... The fence will turn out to be bright and will protect the area well from prying eyes. The material can withstand significant wind loads. Both solid fences and structures of a more complex structure, for example, fences with brick pillars, are made from it.
The flooring is suitable for facade cladding... They are used to decorate residential buildings and structures for other purposes - pavilions, garages, temporary huts.Sheet C20 is used for the manufacture of sandwich panels with insulation used for the construction of industrial structures.
If the walls themselves are revetted with such material without problems, then it is not suitable for working with interfloor ceilings with loose lathing. Products with a higher wave height are needed here.
A wide range of applications makes this brand of flooring one of the most demanded. S-21 flooring has similar characteristics. Despite the minimal differences with C20, it is permissible to make a crate for such a flooring when organizing a roof in increments of up to 0.6 m (if the slope angle exceeds 15 degrees). The thin steel makes it easy to cut the finishing material.
Dimensions, thickness, weight
If the products are MP marking, this indicates that they are manufactured in the enterprise Metal Profilelocated in the town of Lobnya. The rest of the Russian manufacturers of such sheets mark them simply as C20. When purchasing building materials for a specific task, you need to imagine within what limits they vary dimensions of corrugated board C20:
- To denote width profiled sheet C20 taken two different values. First, complete, describes the overall dimension value. It is 114 cm for the standard sheets presented for sale. Useful the width of the C20 corrugated board has a value of 1.1 m. It shows which fragment of the plane will be closed when overlapping products are laid.
- Wave size profiled sheet 20 is equal to 20 mm. It is this parameter that denotes the number in the marking. Accordingly, a wall sheet with a profile height of 8 mm is designated as C8.
- IN the length the dimensions of a sheet product can reach 12.5 m.Most often, there are options with a length of 6 m.
- Wave step or trapezoid for these coatings is 137.5 mm.
Thickness and weight products vary within a small range. The thinnest sheets of C20 are 0.45 mm. The maximum thickness of products with this marking is 0.7 mm. This parameter affects the differences in the mass of corrugated sheet sections with the same length and width. For example, 1 running meter of a product with a thickness of 0.5 mm will weigh 5.4 kg, 1 m² of the same flooring area - 4.9 kg. For a sheet of 0.7 mm, these parameters are 7.4 and 6.7 kg, respectively. In general, the material cannot be called heavy, therefore, products of any length can be transferred to the roof or moved within the construction site without the use of special equipment.
Knowing the dimensions of the profile of the C20 profiled sheet will help in drawing up... Having decided what dimensions, for example, a fence will have, you can calculate how many sheets you need to purchase and what their weight will be. This will also help in calculating the construction budget.
On sale you can find sheets intended for the roof, and options for fences and facade finishes. The first group of products differs from the second by the presence of gutters. When it comes to painted profiled sheet, roofing options are coated only from the front side.
Types of covering of corrugated board C20
Most often on sale there are options with a protective layer. polyester... This is due to its low cost, flexibility and the ability to give bright colors. Such products can be found in any RAL color. The polyester layer has a thickness 25 microns and a smooth, shiny surface. It tolerates climatic factors well, but does not have a very high resistance to mechanical damage.
Colored layer can be applied from one or two sides... In the first case, a gray soil composition is applied to the wrong side. This flooring is available in a wide variety of colors. C20 products intended for installation on the roof, as a rule, also belong to this group. If both sides are coated with polymer, they have the same appearance. These products are often chosen for fencing. But her color scheme is much poorer: brown, dark green and dark red versions are produced for mass sale, and unusual colors are available only on order.
Stronger and more expensive than polyurethane-based coatings. The most famous variant in Russia is pural.The coating is twice as thick as polyester, it lasts longer and is more resistant to wear and tear. Variants are also available that imitate the surface of stone, brick or wood of different species, for example, Ecosteel.
