When choosing materials for the construction of structures of various kinds of buildings and structures, in many cases their bearing capacity should be taken into account. It concerns, of course, including the professional sheet. The bearing capacity of such a material is usually determined by special tables.
What is a
A profiled sheet is made of sheet or rolled steel by processing it on special bending machines. A characteristic feature of this material is the presence of waves of different heights. Unlike ordinary flat steel sheets, corrugated board is characterized by increased strength.
Waves in such a material, among other things, play the role of stiffeners. Of course, higher, in comparison with ordinary rolled steel, the profiled sheet has a bearing capacity.
Fields of application
In private housing construction, the profiled sheet is most often used for cladding roofs of houses, various kinds of household structures, outbuildings, small architectural forms, etc. Many owners of suburban areas also build fences using this material. In addition, corrugated board is often used to assemble various kinds of metal buildings of small sizes - household units, garages.
Since this material is not too expensive, it is sometimes used in private housing for budgetary cladding of facades of residential buildings. In some cases, a permanent formwork for filling interfloor ceilings can also be made from a profiled sheet.
Varieties of material
Used in the construction of buildings and structures can professional sheet:
galvanized;
with polymer coating.
The main advantage of the first type of material is its low cost. The price of polymer coated corrugated board is higher. But such a material looks much more aesthetically pleasing than zinc coated sheets. In addition, it can last much longer in the future. One of the properties of the polymer layer of this material is that it reliably protects the metal of the sheets from corrosion. The only drawback of the corrugated board of this variety is that it has to be mounted as carefully as possible. When mechanical damage appears on the polymer layer, it ceases to perform its functions for obvious reasons.
In many cases, private developers have to carry out the selection of profiled sheet and bearing capacity. In this regard, all material of this type produced by modern industry is classified into:
The material of the first variety is usually used to erect all kinds of structures that are not exposed to severe loads during operation. This can be, for example, a fence or facade cladding.
Roofing professional sheet is used, as can already be judged by its name, mainly for decoration of roof slopes. In addition, such a material with a significant wave height is often used for mounting fixed formwork when pouring floors.
Various kinds of metal structures - garages and utility units - are also usually built from the roofing supporting corrugated board. In this case, this material can be used both for assembling walls and roof sheathing.
What to look for when choosing
In addition to the purpose, when buying such material in the first place, you should definitely look at the height of its wave. The higher this parameter is, the greater the load will be subsequently borne by the skin.
Of course, when buying a professional sheet, you should pay attention to its appearance. Galvanized material of this type is suitable for the construction of not too expensive and durable structures. Sometimes such a professional sheet is used, for example, for sheathing the roofs of farm buildings or erecting fences.
Facades of houses and roofs are usually sheathed with polymer-coated sheets. The same material is recommended for installation of formwork for floors. It will simply be impossible to replace sheets during rusting in such structures in the future. Therefore, zinc material is not recommended in this case.
Another parameter that you pay attention to when buying a professional sheet is the length and width. The sizes of the sheets of this material are usually not too large. According to GOST, their length can not exceed 12 m. More dimensional material is produced by industry only according to specifications. Most often on sale today you can find sheets of this type with a length of 3, 4, 5, 6 and 12 m.
What is the bearing capacity
The main characteristic that you should pay attention to when buying such a material is its strength. In addition to the height of the wave, the bearing capacity of the profiled sheet also depends on the thickness of the steel used for its manufacture.
Metal for the production of such material is produced taking into account the requirements of GOST 24945-2010. The thickness of the profiled sheet can be 0.4-1.2 mm. Steel is supplied to factories producing such material, usually in rolls, which can weigh 5-8 tons.
Sometimes on sale you can find aluminum corrugated board. The thickness of such sheets usually varies between 0.5-1.0 mm. The material of this variety is used mainly as facing. It is significantly inferior in strength to steel. Its only advantage is corrosion resistance.
The height of the wave of corrugated board of any varieties usually varies between 8-44 mm. In this case, the stiffeners for sheets of this type can have a different profile in the section - wave-shaped, trapezoidal, etc.
The wave height of the material when buying can be determined primarily by marking. A wall sheet of this type is marked, according to GOST, with the letter āCā. Roofing supporting corrugated board is usually marked as "H". After the letter in the marking of this material usually comes the numbers. From them it is then possible to determine the height of the wave sheets. For example, for H114 corrugated board this indicator will be 114 m.
How to determine the bearing capacity
No complicated calculations when purchasing aluminum or steel corrugated board for owners of suburban areas who have decided to build any structure from such material do not need to be performed in most cases. Using various kinds of formulas is usually necessary only for sheets made according to TU.
The material, released in accordance with GOST, has standard thickness, dimensions and profile height. Accordingly, the bearing capacity of the profiled sheet of certain brands has long been determined by specialists. You can find out the strength parameters of a material of a particular brand from a special table.
Load capacity
To determine this characteristic, the builder needs to know only the following parameters:
The bearing capacity of the profiled sheet in kilograms per 1 m 2 is determined. When choosing a sheet for a roof, wind and snow loads on slopes are primarily taken into account. These parameters are also determined by the tables for each specific region. In accordance with such indicators, a profiled sheet is selected according to the thickness and wave height of the desired brand.
Most popular brands
In private housing construction, the following material is usually used:
for prefabricated structures, wall cladding - 35;
for canopies, small architectural forms - H57;
for fixed formwork, roofs - H60;
for supporting frame structures - H75 corrugated board.
For roofs of buildings with large spans and wall structures of considerable height, the profiled sheet H114 is most often used.