For roofing, fencing and cladding of various surfaces, metal sheet is actively used today. Its popularity is due to its affordable cost and excellent performance. When it becomes necessary to purchase such products, it is important to clearly understand what kind of sheets are needed in a particular situation and how much they need to be purchased.
So that this task does not seem too complicated, we will try to examine the profiled sheets in detail, find out what are their differences, and in which area they can be used.
The main characteristics of the profiled sheet that you need to know when acquiring material
It is immediately worth noting that the metal profiled sheet has several varieties that differ in thickness, size, type of coating, product weight and type of profile. It is these characteristics that determine the scope and performance of the material.
To ensure that sheets are not selected by eye, the manufacturer affords the appropriate marking on each product, which is strictly regulated by standards and is the same for all manufacturers. It is presented in the form of a letter (C, H or CH), standing at the beginning of the line, and several numbers affixed through a hyphen.
For example: C18-0.50-750-1100. The letter indicates the variety of products, the first number indicates the height of the ribs, the second indicates the thickness of the metal used, the third indicates the width of the profile, and the fourth number indicates the length of the sheet itself. All measurements are in millimeters.
In addition, letters A and B may be placed on the finished product indicating its front and back side. The presence of the letter R indicates that there is a special groove on the sheet that prevents water from flowing in at the joints of the sheets.
Varieties of profiled sheet
As mentioned earlier, a metal professional sheet is divided into several groups. Namely:
- roofing sheets;
- wall materials;
- mixed type products.
Galvanized roofing profiled sheet is marked with the mark N and is characterized by increased rigidity and strength. For the production of such sheets, thicker metal is used, which significantly affects the cost of production, therefore, most often this group of materials is used for roofing.
The wall profile, marked with the letter C, has lower characteristics and is usually used for cladding surfaces, equipping fences and for assembling temporary structures.
Products with the NS mark have average performance and are considered universal. They are actively used both in roofing and in facing works.
Profile Shape Differences
In addition to technical characteristics, galvanized profiled sheet (including painted) can differ in the shape of the recesses, which significantly affects its stiffness. The profile can be in the form of waves, trapezoid, or just be U-shaped.
Products of the latter type are considered universal, most often they are used in wall structures. The trapezoidal profile is considered the most durable and has excellent load-bearing abilities, and the wave-like type is lightweight and the most inexpensive.
Differences in type of coating
The characteristics of the profiled sheet depend not only on the thickness of the metal, but also on the properties of the protective coating applied to its surface. It is of several types:
- Polyester Due to its cheapness, this species is the most common. It painlessly tolerates sudden temperature changes and perfectly resists ultraviolet rays. The brightness of the coating remains for a long period of time, however, it is not resistant to mechanical stress.
- Polyester with a protective coating . The composition of such material is very similar to the previous version. The difference is that the surface of the sheet is rough and does not shine in the sun. Similar sheet options can be made with imitation of wood, stone or brick.
- Pural. This protective layer contains polyurethane and acrylic. The dense coating reliably protects the sheet structure from damage and the harmful effects of acids, which ensures its long-term operation.
- Plastisole . This option consists of polyvinyl chloride with the addition of various plasticizers. It is applied with a sufficiently thick layer and reliably protects the metal profiled sheet from most types of negative influences. Nevertheless, this composition is unstable to temperature fluctuations, which slightly limits the scope of application of such products.
- PVDF. This spraying is made of polyvinyl fluoride and acrylic. It is applied in a small layer, but reliably protects the sheet from the effects of an aggressive environment. The service life of such products is 35-45 years.
Dimensions of profiled sheets
To assess your financial capabilities and determine the required amount of material for certain works, you need to know the sizes and prices of the profiled sheet, and if the cost depends on many factors, then the sizes correspond to the standards and are clearly defined for each type.
Bearing and roofing sheets can have absolutely any height, since they are made by the rolling method. The width usually varies from 75 to 115 cm. The most popular universal options have a fixed width of 100 cm. When ordering a profiled sheet in production, you can designate the desired dimensions of the finished product so that their delivery and installation take place as conveniently as possible.
Metal sheet C8-C10 (wall version) is produced no wider than 90-100 cm, and products of category C18-C44 - only 100 cm.
Height and wavelength of profiled sheet
The height of the wave bend directly depends on the variety of sheet material. So, in bearing variants marked with the letter H, this indicator is much larger than in other species and can reach 144 mm. Shallow grooves are additionally located along the product, which makes it much tougher. This allows the use of a metal profiled sheet on the roof.
The height of the waves of the non-existent wall variety (NS) reaches 44 mm, and the width of the grooves in such cases is 114 mm. The rigidity of this group of profiled sheets is enough to apply it both for roofing and wall work.
Wall corrugated board has a minimum wave height (from 10 mm), which explains its low bending strength. Nevertheless, a wicket from a profiled sheet, a fence and various storage rooms are made of just such a material, since it is quite light and cheap.
Thickness and Weight of Profiled Sheets
Depending on the manufacturer, the profiled sheet has different sizes and prices, but the weight of the products should be approximately the same. And since the sheets are always mounted on some foundation, choosing the facing material, you need to know what load it will put on the crate or walls.
For approximate calculations, we recommend using the following information:
- Products marked H are characterized by a sheet thickness of 0.5 to 0.9 mm. Based on this, it can be concluded that the weight of 1 m² will range from 7.4-11 kg.
- The thickness of the non-wall profiles usually does not exceed 0.8 mm, therefore, the maximum weight of 1 m² is 9.4 kg.
- The lightest facing materials have a width of 0.5 to 0.7 mm. Moreover, the weight of 1 m² of such a sheet will be from 5.4 to 7.4 kg.
Scope of profiled material
One can talk endlessly about the options for using profiled sheet materials, so we will consider in detail where each type of product with different markings can be used.
A wicket door from a profiled sheet, a decorative fence, a small fence and summer hangars are most often assembled from a S-8 or S-10 profile. It is also ideal for warming the exterior walls of buildings.
For the arrangement of light coverings (various awnings and peaks), C-20 and C-21 products are used, and for the fast lining of surfaces and the arrangement of the roof, C-44 material is used.
The professional sheet NS-35 and NS-44 is universal and multifunctional. It can be used for all of the above purposes and for the construction of wall structures of any type.
Reinforced sheets H-75 and H-60 are mostly used in industry. They make the basis for the membrane roof, assemble the formwork for monolithic ceilings and erect industrial hangars.
How to fasten corrugated sheets?
So that the operational characteristics of the assembled structures remain at the highest level, it is not enough just to buy high-quality material, you still need to correctly mount the profiled sheet to the base. For these purposes, various fasteners can be used.
When it comes to arranging roofing, manufacturers of profiled sheets recommend giving preference to special self-tapping screws. Their diameter ranges from 4.8 to 6.3 mm and a length of from 20 to 250 mm. A feature of such fasteners is a wide hex head (with a soldered press washer) and the presence of a special rubber gasket that does not lose its properties even when used in an aggressive environment.
For the arrangement of fences and partitions, you can purchase steel screws with a protective zinc coating. In this case, a rubber gasket should be laid between the nail head and the profiled sheet.
Before installing the profiled material, the base should be treated with an anti-corrosion solution. This will significantly extend the life of the entire structure.
Profiled Sheet Cost
Depending on the manufacturer, the thickness of the metal and the type of upper protective layer, the cost of this material can vary significantly. Therefore, we will consider how much the most popular professional wave sheet with various types of protection will cost.
So, a galvanized product of Russian manufacture will cost the buyer about 167 rubles per m². In the presence of a polyester protective layer (0.4 mm thick) the same sheet will cost about 220 rubles per m².
The price tag of products with plastisol coating starts at 595 rubles per m², while the professional sheet with a pural layer is estimated by the manufacturer at 450 rubles.
Finally
High technical characteristics, practicality and ease of installation contribute to the fact that the profiled sheet becomes almost universal material. In addition, it is quite easily cut, transported, drilled and processed both manually and mechanically.
Unpretentiousness in operation and a long service life make the use of a profiled sheet more than relevant, which confirms its active use on most construction sites.