Corrugated sheeting is a practical, inexpensive, but durable and weather-resistant roofing material, which is currently considered the leader among roof coverings in the private, industrial, and commercial sectors of civil engineering. For the construction of more than 60% of country houses and gardens, corrugated sheets are used. The dimensions of the sheet allow you to easily overlap slopes of any shape, area and slope. It is this versatility that explains the high demand for corrugated sheets. In this article we will tell you what standards regulate quality, in what sizes it is produced, and also how to calculate how much material is required for installation.
Corrugated sheeting is a roofing material made from high-quality galvanized steel sheets using the cold pressing method. During the production process, a smooth sheet is given a wavy shape by a powerful press, the vertical walls of which are essentially additional stiffeners that increase the rigidity and mechanical strength of the material. To protect the metal from corrosion, a polymer coating or special paint is applied to the corrugated sheet. In accordance with performance characteristics and scope of application, this material is classified into the following categories:
- Wall. This class of corrugated sheet is characterized by a smaller thickness of the steel base, a lower profile wave height, and therefore a lower load-bearing capacity. It is mainly used for the construction of fences, fences, and wall cladding. For the construction of a roof, corrugated wall sheeting can only be used as a temporary covering during installation work.
- Carrier. Load-bearing corrugated sheeting differs in that it is made from galvanized steel of greater thickness, and the wave height of this material sometimes exceeds 100 mm. It is used for the construction of hangars, garages, containers, as it has a high load-bearing capacity. This material can be used as a roofing material if you need to cover a large area with a flat or pitched roof.
- Universal (roofing). This type of profiled sheet has average characteristics, which are in the range between wall and load-bearing material. Most often, it is universal corrugated sheeting that is used for roof construction. Sufficient thickness and load-bearing capacity of the material, coupled with a low price, makes it one of the most practical roofing coverings.
Important! The quality of a profiled sheet is determined by only 3 parameters: thickness, width and surface waveform that meets the standards. The requirements for this material are specified in GOST 24045-94, which regulates standard sizes and permissible deviations in the production of corrugated sheets. Manufacturers certify products voluntarily, but there is no doubt about the quality of the roofing material that has a certificate of conformity.
Standard sizes
The dimensions of corrugated sheeting are another advantage of this material; they allow you to select sheets that are optimally suitable for laying the roof covering. Various brands Corrugated sheets are distinguished by 4 parameters - the thickness of the steel base, the width and length of the sheet, as well as the shape and height of the profile wave. The scope of use and cost of the material depend on these criteria. For the construction of fences, sheets with a small thickness and length are used, which are convenient to place between the supports. And for the construction of the roof, corrugated sheeting with a wave height of at least 50-60 mm is used. Roofing material produced on the basis of profiled steel sheet, has the following standard sizes:
- The length of the corrugated sheet depends on the area of application of this material. Manufacturers use rolling mills that can produce sheets up to 14 m long. Corrugated sheets used for roofing residential buildings, are usually cut into 6 m sheets, since increasing the length beyond this makes transportation unreasonably expensive.
- The width of the profiled sheet is limited by production conditions. The rolled thin-sheet galvanized steel entering the press has a standard size of 1250 mm, and what the width of the material will be after leaving the conveyor depends on the shape and height of the wave. The width of load-bearing corrugated sheeting grade C75 is only 800 mm, and the same parameter for wall grade C8 is 1200 mm, despite the fact that they are made from the same source material. That is, the width of the material depends on the shape and height of the profile.
- The thickness of the corrugated sheet used for roofing is 0.45-1.2 mm. This indicator affects the strength, load-bearing capacity and durability of the material. In addition, the thicker the corrugated sheet, the more expensive it is.
Note! Roofing corrugated sheets differs from the wall profile in shape and height. The waves of this material are on average higher, which makes it possible to better remove melt and rainwater, accumulating on the slopes. In addition, it is often equipped with additional stiffening ribs that increase the strength and load-bearing capacity of the material.
Material calculation
When installing a roof, a situation often arises when roofing material lacks. In this case, you have to buy what’s missing, and also shell out money for delivery just for a few sheets. This introduces nervousness into the process, forces craftsmen to cut out and save on overlaps, which ultimately increases the costs of roofing work and reduces their quality. To avoid such a nuisance, you need to calculate how many sheets of corrugated sheeting will be needed for the roofing. The calculations are performed as follows:
Experienced craftsmen advise purchasing corrugated sheets with a small safety margin; it amounts to 10-15% of the number of sheets. The more complicating elements in the roof structure (“cuckoos”, valleys, ribs), the more reserve is made.
Video instruction
When you need to quickly install a reliable fence, metal fences made of corrugated sheets are perfect.
The dimensions of the profiled sheet for the fence can be selected so as to make a high fence behind which you can hide the entire area, as well as a small one decorative fence to set the boundaries of the site.
This type of fencing is durable and copes well with wind loads.
Until recently, many fences were made of wood, but this material has a number of disadvantages in terms of the construction of these structures. Modern industry has proposed corrugated sheets (corrugated sheets or metal profiles) for these purposes - corrugated sheets made of galvanized steel.
Its main advantages are ease of installation, practicality, modern design, strength, durability, no problems with rust and mold. Except for fences this material used for arranging roofs, walls, panel fences, frame structures.
Unlike aluminum sheets, corrugated fence sheets are moisture resistant and more durable. Although steel sheets are characterized by strength and durability, they are more expensive.
The corrugated sheet has an additional polymer coating and galvanization, which protects the steel from corrosion and fading. This coating is double-sided, and manufacturers offer a variety of colors.
The disadvantage of coating sheets with paint is that it is problematic to use welding for installation, since the paint is incompatible with high temperatures.
A fence made of corrugated sheets is easy to both install and dismantle; it protects well from wind and noise in the neighboring area. Without good fence strong winds can disrupt a picnic or damage seedlings.
According to its intended purpose, corrugated sheeting is:
- Fence or wall;
- Carrier;
- Roofing.
Accordingly, this material has different markings:
- WITH– for covering walls, fences and partitions;
- N– for roofing;
- NS– for roof and walls.
There are also corrugated sheets marked A and R, but only A is used for fencing, since the latter does not contain a water seal on the edge and is painted on a certain side.
Fence corrugated sheets have a relatively small steel sheet thickness and profile height, which makes the material quite easy to install manually. Such characteristics provide lightness and efficiency, but require little physical activity.
For adherents state standards Please note that the parameters of the metal profile and the requirements for galvanized steel sheets for fences are contained in GOST 24045-2010.
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In order to build the optimal fence, it is necessary to first calculate what size of corrugated sheet for the fence is best to use. This will save time and money. For the construction of fences, professional sheets of grades C8, C10, C21, MP20, NS 35 are usually used. The numbers after the letters characterize the height of the corrugation in mm.
C8 grade corrugated sheeting has a useful width of 1150 mm, a total width of 1200 mm with a wall thickness of 0.4 to 0.8, as well as a pitch between ribs of 62.5.
It is clear that the profile height is 8 mm. Since part of the sheet width is spent on overlap (as when joining slate), the useful and working (full) width is indicated for each brand.
Sheet grade C10 accordingly, it has a fin height of 10 mm, a working width of 1100, a total of 1155 mm, a pitch between ribs of 45, and a metal thickness of 0.4 to 0.8.
Profiled sheet brand C20 characterized by a corrugation height of 20 mm, a working width of 1100 and a total width of 1150 mm. The pitch between the ribs is 137.5, the metal thickness is from 0.4 to 0.7 mm.
Corrugated sheeting brand C21 characterized by a trapezoidal profile, with standard sheet lengths of 2, 3 and 6 m. At the same time, it has a useful width of 1000 mm, a total width of 1051 mm. The profile height is 21 mm, the sheet thickness is 0.4 - 0.7 mm, and the size between the waves is 65. These dimensions of the profiled sheet for a fence are quite optimal.
Material grade NS35 Accordingly, it has a rib height of 35 mm, a useful surface width of 1000 and a total width of 1060 mm. The pitch between the ribs is 70, and the thickness of the metal is from 0.7 to 0.9 mm. HC35 contains grooves on the outer and inner ribs for permanent formwork.
To decide on the appearance, look different designs and heights.
With an average height of 170–185 cm for a tall person, it is better to make the height of the fence at 2 m. When using a profiled sheet for a fence, the size of the sheet should correspond to this height.
If you just need to mark the boundaries of your site, for example in a country house, you can use a profile of a lower height. Optimal depends on size summer cottage and the presence of neighbors.
It is better to use material with small height profile (no more than 20 mm). If desired, you can purchase 10 and 15 mm. (labeled NS-10 and NS-15, respectively).
On sale you can find a sheet with a thickness of 0.35 mm, which is cheaper (made in China), but such material parameters can result in dents and damage to the fence from minor external influences.
The profiling depth for fences is considered sufficient from 6 to 20 mm with a metal thickness of 0.4 - 0.5 mm.
To correctly select the grade of corrugated sheet, you can use special tables that take into account the height of the fence, span, metal thickness and wind load. Therefore, the standard sizes of corrugated sheets for fences have a wide range. Every serious manufacturer of this material has such tables.
The most popular parameters of corrugated sheets for fences are grade C20 with a wave height of 20 mm, which provides sufficient strength and optimal cost. In this case, the popular metal thickness is 0.5 mm.
At the factory, metal profiles for fences are produced in sheets of 12 meters, but then cut to a length convenient for the consumer: from 2 to 3 m. The most common length is 2 m. At the request of the buyer, the sheet can be cut to a different length.
The classic picket fence is a very reliable and simple type of fence. Look from the metal profile.
It is perfect for quickly and economically erecting a fence. Read more about a garden fence made of metal picket fence.
And if you need a solid closed fence, it is better to use a profiled sheet. Find out more about modular fence made of corrugated sheets.
One of design solutions when constructing a fence from corrugated sheets, its fencing is brick pillars(from decorative brick). In this case, the brick is laid around metal pipes on which the entire structure rests.
The fence structure includes sheathing, frame and fasteners. To construct the frame, profiles are often used metal pipes With rectangular cross-section. It is better to protect the metal from atmospheric influences, and it is better to attach sheets to a rectangular profile.
The hole for installing the pipe should be dug to a depth below the freezing depth. Otherwise, the pipe will be squeezed out and deform the fence. The standard distance between posts is 2.5 - 3 m.
Typically, transverse pipes are mounted on poles in two rows parallel to the ground, but if the height of the fence is more than 2 meters, then there may be more such rows. It is better to connect transverse pipes with pillars to the frame by welding; if painted, with roofing screws. When the fence is already fully assembled after welding, it is better to paint over the welded areas.
Fastening with self-tapping screws has the potential to become loose over time as a drawback. The number of self-tapping screws is approximately determined at the rate of 4 pieces per meter of fastening line, but depends on the number of lags.
For better wind resistance, it is better to double the number of screws on the upper fastening line. When installing sheets, to avoid problems with gaps at the junction of sheets (when one edge of the rib is larger than the other), it is necessary to overlap the smaller edge with the larger one.
The installation of sheets begins from the farthest, so that subsequent joints can be covered. This way the fence will look solid.
The first sheet is the most important thing. It must be mounted exactly level. In case of skew from verticality, subsequent sheets will receive significant deviations.
If it is necessary to build a perimeter of 100 m with a height of 2 m, then the height of the sheets should also be appropriate - 2 m. If you plan to install a gate, then their width should be subtracted from the perimeter.
The pillars are installed with an indentation of 2.5 meters, then the number of pillars will be: 100 m: 2.5 = 40. For gates and wickets, you need to add 3 pillars. The result is 43. They should go 1 - 1.5 meters deep into the ground (usually this is below the depth of soil freezing in winter).
When using profiled sheets of grade C20, the material consumption will be: 100 m of perimeter is divided by 1.1 m of useful width and rounded up. It turns out 91 m, but it is better to take it with a reserve - 92 m.
With a fence height of 2 m, it is better to use transverse pipes in two rows. With a perimeter of 100 m, their length should be 200 m.
If you use 8 fasteners per square meter of sheathing, the total number of such elements will be: 2 m (height) x 100 m (perimeter length) x 8 = 1600.
Properly selected material for fencing construction will ensure the durability and reliability of the entire structure.
Modern corrugated sheeting is a universal building material that is in quite high demand. It is also used as a base for covering and reinforcing building structures, as roofing, wall cladding and for many other purposes. The corrugated metal sheet looks neat, has a simple and reliable profile, can be painted in almost any color and is brilliantly easy to install.
And, if you pay attention to this particular material, you need to choose the type that is suitable for the desired task. And for this it is important to know what sizes of corrugated sheets are needed, to what extent they are strong and with what profile height. And, depending on these three important parameters, corrugated sheeting is divided into specific types and types, which we will tell you about now.
The largest range of technical metal sheets Today it is presented in the form of profiled and flat sheets.
We can say this is one of the most the best materials for low-rise construction, which is great for both roofing and the construction of fences, creating floors and wall cladding:
As the basis for modern profiled sheets, thin-sheet rolled metal with aluminum or zinc coating is used, and the manufacturing process takes place in two different technologies– TU 14-11-247-88 (ats) and TU 14-11-236-88.
Advantages of corrugated sheets over other materials
Profiled decking (corrugated sheets, corrugated sheets) are sheet corrugated profiles with corrugations repeated along the width of the sheet various shapes. They are produced by cold bending of thin cold-rolled sheet.
It is not for nothing that such a coating is called a multifunctional building material. It's all about availability different types, which differ in application conditions, profile shape and metal thickness. The thickness of the metal in the profiled sheet varies from 0.35 to 0.9 mm, and the width - from 600 mm to 1150. In the factory, the height of the waves is made from 20 to 130 mm, as indicated by the special markings on the packaging. The length of the sheet is often that which is preferred by a particular manufacturer or specially ordered by the buyer.
This type of roofing is valued for the following qualities:
- Ease. Weight square meter corrugated sheeting from 3.9 kg to 24.1 kg. Thanks to this, it is possible to significantly reduce the volume of load-bearing structures, and there is no need for serious support.
- Anti-corrosion protection and the possibility of decorative coating. The most best products from leading manufacturers has a service life of 45 years.
- Possibility of repeated use, which cannot be said about a soft roof.
- Large selection of fasteners and their colors.
- Malleability machining. Corrugated sheeting is cut and drilled using conventional construction tools.
By the way, corrugated sheeting is often compared with metal tiles as a material that is similar in the manufacturing process and operation. The same base, the same cold press, just a different look. In fact, there is a huge difference between them! It's all about the so-called “dead zones” of metal tiles, which makes them difficult to cut. For example, if you do not pre-order cutting of the coating in the factory for a specific project, then large cost overruns cannot be avoided. In addition, it is quite difficult to join individual pieces of metal tiles together in order to achieve an even and tight seam, but with corrugated sheeting everything is much simpler.
And finally, such a roofing covering has an excellent mechanical strength and flexural stiffness along the corrugations. And this is not an empty phrase: such technological qualities make it possible to build safe and durable structures. Therefore, let’s summarize and name the three main qualities of corrugated sheeting: durability, fire safety and environmental friendliness.
And ordinary people value this material for private construction for its price, efficiency, simplicity and ease of installation. Let's see through the eyes of a practitioner: the sheets are light, convenient, cut with ordinary metal scissors, and easy to store and transport. Anyone can install corrugated sheets House master, just read useful tips on our website. In addition, during the process of repairing a corrugated sheet covering, it is easy to replace its individual fragments and even reuse old ones for a new roof.
Here is an educational video on this topic:
Additional coating and corrosion protection
Modern corrugated sheets are produced by cold rolling from high-quality galvanized steel. Zinc is necessary here, because it protects well from exposure external environment, but additionally it must be protected with polymer coatings. Modern coatings provide not only attractive appearance, but also significantly improve its mechanical properties, protect it from atmospheric influences and give it durability.
Basically, this is either galvanization, which provides excellent protection against corrosion, or aluminum-galvanization, when the sheet is coated with a mixture of zinc and aluminum. This is more economical option coating, but also less durable. The fact is that cheap aluminum reduces the protective properties of corrugated sheets. That is why such sheets are additionally covered with another decorative layer, for example, polyester.
And the most budget-friendly corrugated sheeting, which is often found on the domestic market, is produced without any color coating at all. Not only does it have an unpresentable appearance, but the quality of the material is low. But to create an overlap for large areas aesthetics are not needed, but low cost is a priority. Galvanization with the addition of silicon is not much different from this option, but still better.
They make corrugated sheets with special polymer coating. After all, without a coating, a galvanized sheet quickly wears out, and it constantly needs to be cleaned of dirt and rust. Therefore, this is not an option for a roof, and it is better to give preference to profiles with an outer layer of pural and similar coatings.
The color of the coating itself is important not only as an aesthetic aspect, but also for designers. For example, an industrial building must be maintained in the chosen corporate style. And colored polymer coating also has the following types:
- Glossy polyester, which looks great and protects well from corrosion. It is often used for corrugated sheets exterior finishing walls and facade. Polyester is enough to resist corrosion and not necessarily to be resistant to mechanical damage, of which there is little. Therefore, such professional sheets are often ordered for industrial buildings which usually have more than one floor. But if you choose corrugated sheeting to decorate your own home, think about the fact that the wind will carry branches and other debris, and therefore scratches are more likely here and it is not worth saving.
- Pural– more expensive coating. It is made on the basis of polyurethane and polyamide. Provides high reliability and excellent resistance to ultraviolet radiation and low temperatures. For roofing corrugated sheeting, you can’t find anything better.
- Plastisol– the most durable of all types of coating, 200 microns thick. It is based on polyvinyl chloride, and in the factory, relief embossing with a notch is applied to such a coating, for particularly difficult climatic conditions.
Less common on corrugated sheets is a coating such as acrylic, PVC and PVDF, which also have their advantages:
When it comes to roofing, the thickness of the zinc coating and the method of its application are critical. If this is not enough, any scratches on the roof will lead to rapid corrosion. The type of rolled product is also important, which affects the durability of the future roof:
Stiffness requirements and corrugation shape
Modern corrugated sheets are sold with different sizes sheet and profiling form. It is not difficult to select corrugated sheeting specifically for the roof; take into account a simple principle: the higher the corrugation, the stronger the roofing will be.
But, if you approach the matter with all responsibility, first calculate the loads of the future roof and only then look at how well the selected metal thickness and profiling height correspond to these parameters.
So, today corrugated sheeting is produced with this form of corrugation:
- Wavy, which has cross section in the form of a sinusoid. The wavy form is the earliest, appearing at the end of the 19th century. This corrugated roof has a particularly aesthetic appearance, which is so valued by designers. The waves themselves are sinusoids or more complex conjugate circles.
- Trapezoidal, which provides the corrugated sheet with maximum rigidity and load-bearing capacity. This form of rolled metal sheet appeared in the 20s of the 20th century. The trapezoidal profile turned out to be more durable in practice, with high load-bearing capacity and ease of installation. And until today this is the most popular form of corrugated sheeting, which is produced with corrugation heights from 2 to 208 mm.
- Cassette, with a cross-section and corrugated shape in the form of the letter “P”, which is excellent for strengthening wall structures. Corrugated sheets with this shape appeared relatively recently and are intended specifically for use in wall structures.
Look how visually different these types are:
The height of the profile of the corrugated sheet is also different: it is 12, 14, 18, 20, 30, 35 and even 65 mm. On the packaging of the corrugated sheet the height of its profile is indicated. The main requirement for this parameter is that the sheets be rigid and high enough. And the higher the profile, the harder the corrugated sheet itself will be, which is the secret. But the low profile, up to 12 mm, is often used for outbuildings.
You will be interested to know that corrugated sheeting has a certain relationship between the dimensions of the sheet, profile and corrugation height. For example, sheets with a height of 30-55 mm have a thickness ranging from 0.25 to 0.5 mm, and sheets with a height of 12-20 mm have a thickness of 0.5 mm.
And finally, corrugated sheeting is also distinguished by the presence of grooves. For example, when you lay sheets overlapping, and they have a capillary groove, it should be under the sheet - this is additional element which will help remove moisture from the roof.
Types of corrugated sheeting: wall, load-bearing or roofing
Modern corrugated sheeting is in demand in construction and architecture, and is especially valued in prefabricated technologies. It is used not only for arranging roofs, but also for finishing walls, facades and much more, and such corrugated sheets are thinner than what is necessary specifically for roofing.
This is why it is so important to understand its types:
If we take a closer look at the scope of use of corrugated sheeting, it is made for the following areas:
- Wall corrugated sheeting used for cladding walls and cladding various fences. Typically, its profiling height is no more than 20 mm.
- Roofing corrugated sheets designed for roof coverings, from simple to complex shapes. The standard corrugation height is 20-45 millimeters.
- Load-bearing corrugated sheet with a height of 45-160 mm, it is produced specifically for creating floors for warehouse and industrial facilities.
So that buyers do not get confused, wall corrugated sheeting is designated by the letter “C”, roofing “CH” or a separate abbreviation bearing “H”, and there is also a separate type of corrugated sheeting with a trapezoidal shape, which is denoted by the letter “T”.
The number that will appear next to the main letter indicates the height of the profile, although some manufacturers can additionally indicate the thickness of the metal, the type of coating and their trademark:
Let's look at each type separately.
Wall corrugated sheeting: lightness and rigidity
Today, the letter “C” is used to mark all profiles with a wavy and trapezoidal shape with a height from 8 to 44 mm. Such profiles are used for wall railings, sandwich panels, partitions and fences. Main function C-profile – protective and decorative.
C8– wall decorative corrugated sheeting. It has a profile height of 8 mm, which is considered the most suitable cladding relief, and all thanks to its short repeat period. And the rigidity of the sheet is achieved not by the shape of the profile, but by the small bending radius of the sheet and the increased slope of the side shelves. European analogues – T6 and T8.
C10 is already included in the list of profiled sheets, which are included in GOST 24045-94. For the manufacture of this type, not standard blanks with a width of 1000 and 1100 mm are used, but unusual ones with a parameter of 1250 mm. Thanks to this, sheets are obtained with a thickness of 0.35 to 0.8 mm. It is C10 that is most often used for constructing fences that imitate wood texture and other ideas. modern designers. Also C10– the main material for sandwich panels.
C13– thin galvanized steel sheets for the roof and walls. This corrugated sheet is widely used in fencing, cladding, prefabricated panels and structures. Moreover, the fence, thanks to its increased rigidity, can already be built higher than 2.5 m. The working installation width of such sheets is 1100 mm. And in this case, colored polymer painting on both sides is already allowed. European analogues - S15, T14 and RAN-15.
C17– a more durable corrugated sheet for fences and roofs, which is additionally used for internal and external cladding metal buildings and fencing areas from fire and lightning. This profiled sheet also differs from previous options by the presence of a groove for water drainage, which accidentally leaks into the joint of adjacent sheets. Installation width C17– 1090 mm. European analogues of profiled sheets C17, 18 and 20 – T18 and T20, RAN-20, MP20.
This roofing looks great on simple-shaped slopes, but has some limitations: minimum angle the inclination should be 14 degrees, with the exception of some types of corrugated sheets, where both 8 and 9 degrees are acceptable. There is also a special corrugated sheet for practically flat roofs with a slope of 3-4 degrees.
C18– more or less high-quality corrugated sheeting with small stiffening ribs. They eliminate the main drawback that metal roofing usually suffers from - the flapping of the flat sheet with every gust of wind. For this reason, this type of metal profile was endowed with excellent joining ability and tight sealing of narrow corrugations. There is also a groove for moisture drainage. Installation width – 1150 mm. Analog – Finnish profile RAN-19R and Orion.
Another view C18 – C18(wave). As you may have guessed, this profile has a wavy shape. This gives it a large bending radius and, at the same time, too little rigidity. Because of this, the maximum installation area does not exceed 1100 mm. Analogues: B18-1000, A18-1000, MP 18 and RAN-18R.
S20- a slightly stronger option than the previous one. Analogues: T20 and RAN-20.
S21 is a wall profile that complies with GOST 24045-94. It has a regular, honeycomb-like trapezoidal structure. It gives the product versatility in use and quality in joining. Installation width – up to 1000 mm.
NS35- This is one of the most popular metal profiles for walls, fences and roofs of outbuildings. The stiffening ribs here have a depth of 7 mm. Thanks to this, such a profiled sheet is suitable for arranging permanent formwork and covering with lathing up to 1.5 m.
NS44 and for coverings, and for walls, and for fences. It is made from a sheet with a width of 1400 mm and a strength that corresponds to a profiled sheet H114 with a width of 750 mm. This covering is laid at a sheathing pitch of up to 2.5 m.
Another option - NS44 TU, as a simulating analogue NS44-1000, where for external similarity there are also stiffening ribs on wide and narrow shelves. But here the workpiece is smaller in width, due to which the profile periods are reduced from five to four, the angle of inclination of the side shelves is also reduced, and the dimensions are reduced for wide and narrow ones.
C44 manufactured according to GOST 24045-94. There are no additional stiffening ribs, and the raised lines look neat and simple. The installation width is 1000 mm, and such corrugated sheets are used for walls, roofing and wall cladding. Such sheets can be laid on the lathing in increments of 2 m.
Load-bearing wall profile: boundary values
A separate type of corrugated sheeting is marked “NS”. To some extent, it is too good for ordinary wall decoration and too weak to make ceilings from them. But there are many areas where exactly these are needed: high solid fences, wall fences and even some roofs.
H750– load-bearing corrugated sheet. Due to the fact that it is included in GOST 24045-94, it is successfully used even by inexperienced designers. The only drawback this type - in the absence of the required 1100 mm roll blank.
H900– a more durable sheet metal profile, which factories today produce according to their own specifications. It is allowed to be laid at a sheathing pitch that does not exceed 3 meters.
Load-bearing corrugated sheeting: strength and thickness
For the construction of interfloor ceilings, corrugated sheets with a height of 57 mm or more are used. If the spans are more than 3 meters, then choose corrugation from 57 to 75 mm, if more - then from 75 mm and a corrugated sheet thickness of 0.7-0.8 mm. Such corrugated sheeting is produced with additional stiffening ribs for higher load-bearing capacity.
Load-bearing corrugated sheeting is used for interfloor ceilings, reinforcing permanent formwork, supporting structures and, of course, roofing. In addition, such sheets are also used as an element of the supporting structure of the frame of a house or building:
H60– bent sheet corrugated sheets for load-bearing structures under soft roof, permanent formwork and arrangement metal roofing. The basis is a galvanized sheet 1250 mm wide, with a rolled grade of at least 220. It is also installed on supports no wider than 3 m. GOST - 24045-94. Its analogue, made from a structural blank, is today used as a replacement for the H57-750, which is considered less reliable.
H75– the most popular corrugated sheet, which is actively used in steel structure for any climate zones. It can even be laid on lathing, which is installed in increments of up to 4.5 m! And they make H75 from rolled steel grade 220-350 according to GOST 52246-2004.
H114– metal profile, which is used as a ceiling. With a width of 600 mm, H114 has the highest load-bearing capacity among other steel decks. It is made from steel 0.7-1.0 m thick and 1250 mm wide. Also suitable for permanent formwork.
Its subspecies H114 750 with a workpiece width of 1400 mm, it significantly limits the possibilities of using such corrugated sheeting and increases the width of the overlap with one sheet, much more than H114-600. Still have H114– the highest trapezoidal corrugation, the parameters of which are determined by the GOST 24045-94 standard. Thanks to this, such sheets are already laid with a support spacing of up to 6 m. Analogue H114 – RAN-113.
H153– this is a load-bearing profiled sheet of European quality, otherwise called “Europrofile”. For him, the permissible lathing pitch is up to 9 meters! That is why it is used both for roofing and for arranging interfloor ceilings, and when maximum load-bearing capacity is needed, but without a serious increase in the weight of the entire structure. Analogues: T150.1 and RAN-153, which is only available in white.
H158– the highest and most durable Euro profile produced in Russia. It is produced according to European standards. Analogue for N158 750 – T.160.1.
By the way, load-bearing corrugated sheeting has two subtypes: load-bearing and self-supporting. The load-bearing type is needed in the construction of swimming pools and other private construction, while the self-supporting type is used in large industrial facilities.
In custody
Let's summarize: modern corrugated sheets are produced in different thicknesses, coatings and sheet widths. And for each task its own type and type are suitable. It is only important to purchase a product that actually has the parameters that were declared, but this does not always happen.
In practice, “handicraft” corrugated sheeting may turn out to be thinner than necessary and less protected from corrosion. Needless to say, what problems will this cause in the future? Especially when it comes to overlap.
The accuracy of the profile geometry, the reliability of the joining of the previous assembly of sheets, and the future strength of their adhesion depend on the exact conditions under which corrugated sheeting is produced, and what kind of control occurs over its quality. Usually large manufacturers They look for good suppliers of metal and issue a normal certificate for their products, which, by the way, you can request from the seller.
Approach the issue of choosing corrugated sheets responsibly, and it will serve you for many years!
Today, one of the most popular roofing and facade building materials is corrugated sheets, the sizes and colors of which are available in a wide range. In this article we will tell you why corrugated sheeting has become so popular and how it differs from similar building materials on the market.
1 Advantages and disadvantages of different brands of corrugated sheets
Over the years, the profiled sheet has proven itself well. It is worth noting the following advantages of corrugated sheeting:
- simple and quick installation;
- corrosion resistance;
- low weight and high strength;
- aesthetic appearance;
- low cost.
The corrugated sheet consists of:
- base – steel sheet;
- zinc and phosphate anti-corrosion coatings;
- polymer and primer coatings.
The profile sheet has its own markings, by which you can find out what type of work it is intended for. There are three main types building material:
- Wall or facade with product marking “C”, used for finishing areas with small external load.
- Universal “NS”, suitable for any external and internal finishing.
- Roofing “N”, designed primarily for the construction and finishing of the roof.
Sometimes manufacturers change standard markings to ones developed specifically for their logos, for example MH, PC, as indicated in the technical specifications for these products.
2 What are the standard parameters of profiled sheets?
The generally accepted and most in demand in construction are the dimensions of rolled metal that provide the greatest convenience during transportation and the least labor intensity during the installation process. TO standard sizes profiled sheets include:
- material length;
- overall (overall) and usable width;
- sheet thickness;
- height;
- sheet weight;
Typically the most popular lengths are 3 and 6 m. The uniqueness of the material lies in its manufacture from roll type metal, therefore, at the request of the customer, the length of the product can be almost any. But with a length of more than 12 m, some properties of corrugated board may be lost.
For different types of assembly, it is customary to purchase sheets taking into account the nuances of the structures being built. It must be remembered that the total and working widths differ by an average of 50 mm due to the technology of laying products “overlapping” (overlapping one wave). Therefore, to calculate the optimal amount of material, the overall width is taken into account during transportation, and the working width during installation.
The thickness of the corrugated sheet corresponds to the thickness of the source material – galvanized sheet. The standard material is considered to be from 0.5 to 1 mm.
The choice of wave height (stiffening rib) depends on installation options and the expected mechanical load on the building material; the weight of the sheet and its working width are also taken into account. Naturally, the strength of roof corrugated sheeting will be higher than that of wall sheeting, because the loads it can withstand are many times greater.
3 Corrugated roofing sheet - dimensions of sheets for the roof
The profile sheet began to be widely used for roofing works, thanks to its advantages over ondulin and tiles - more light weight and high strength provided by stiffening ribs. Corrugated roofing sheets, the sheet sizes of which are the same for all manufacturers, comply with generally accepted GOST or approved technical specifications(THAT). These standards allow the use of this building material for any type of structure: industrial buildings, temporary facilities, large-sized buildings.
The distinctive dimensional characteristics of the roofing material are the thickness of the metal and the height of the stiffener. Taking these indicators into account, there are several popular brands for roofing:
- PC 20 with ribs height 20 mm, total width 1140 mm.
- PC 35, where the height is 35 mm and the total width is 1125 mm.
- NS 44 and PK 45 with wave heights of 44 and 45 mm, respectively, and a total width of 1045 mm.
- H57 – height 57 mm and width 1050 mm.
- H75 – 75 mm and 800 mm, respectively.
For all these brands, profile sheets of various lengths are produced. Depending on the configuration of the floors and the roof itself, lengths from 0.3 to 12 m are used. Also, in addition to the total width, this building material has another important indicator - the working width (less than the total to 50 mm, depending on the size of the profiled sheet).
The external load that the material must withstand directly depends on the thickness of the sheet of rolled steel used. The thicker the sheet of metal and the higher the wave (rib) of stiffness, the greater the load the material can withstand. Roofing corrugated sheeting with a thickness range from 0.4 to 1 mm is in greatest demand.
This value is taken into account when designing buildings and significantly expands the scope of application of the building material. A load table specially created for design engineers facilitates calculations, which affects the price of the project, significantly reducing its cost. The thickness of the corrugated material affects another important technical characteristic of the corrugated sheet - the weight of the sheet.
Small specific gravity building product became one of the reasons for its popularity.
4 Wall corrugated sheet - dimensions and weight of rolled profiles
And facades are used for cladding buildings, creating a layer of insulation and internal partitions. The most common is corrugated sheet, the dimensions of which are as follows: sheet width 1–1.2 m and wave height about 20 mm (for grade “C”).
The thickness of the metal sheet varies from 40 to 80 mm. The smallest rib height currently produced is 8 mm. Wall corrugated sheeting is intended for external decoration of walls and interior work. There are also materials with fin heights of 10, 15, 17 and 21 mm. Sheets with ribs over 21 mm are considered universal. By individual order some companies produce corrugated sheets less than 8mm thick.
The popular and useful width for walls is considered to be 1090–1150 mm, and the C15 brand is popular in a width of 0.8 m. The latter is often used for. Wall corrugated sheeting weighs much less than roofing sheeting. This figure varies from 4.45 to 8.37 kg for both 1 linear meter and a square of usable area.
Corrugated sheet C8-1150 is one of the most universal profiles, widely used in modern construction. C8 corrugated sheet is the most economical corrugated sheet; it is used as a wall facing material, as well as for the construction of fences and installation of suspended ceilings. Despite the fact that its load-bearing capacity is relatively small, galvanized C8 corrugated sheeting is often used for installation of roofing coverings pitched roofs with an inclination angle of more than 30-40°.
C8 wall corrugated sheet - appearance
Production of C8 corrugated sheets: main dimensions and quality requirements for finished products
C8 corrugated sheets for fences and roofing are made by cold rolling in accordance with GOST 24045-94 and TU 1122-079-02494680-01 from thin sheet steel, with a thickness of 0.5 to 0.7 mm. The following raw materials are used:
- Cold rolled steel coils grades 01 and 220-350 according to GOST R 52246-2004 with zinc protective coating according to GOST 14918.
- Galvanized steel with polymer coating according to GOST R 52146-2003 and steel with paint coating according to GOST 30246.
The line on which galvanized C-8 corrugated sheets are produced includes the following equipment:
- an unwinder on which a roll of sheet steel is installed;
- forming machine (often called a rolling mill);
- guillotine shears;
- receiving device;
- oil station;
- remote control with automatic control system.
The entire production process is fully automated; the function of shift personnel is to control the production process and monitor the operation of the equipment.
Profiled sheet S-8 – profile dimensions
Profiled sheet c-8 has a surface with corrugations in the form of trapezoids with a height of 8 mm, a base width of 62.5 mm and a distance between corrugations of 52.5 mm. On modern rolling mills that produce C8 corrugated sheets, the dimensions of the finished product sheet can be from 0.5 to 12 m.
The standard regulates the following requirements for the characteristics of metal profiled sheet C8:
- Corrugated roofing sheet C8 on the front side may have minor abrasions and damage that do not affect the integrity of the protective coating.
- Profiled sheet S-8 may have the following deviations: profile height ±1.0 mm, sheet width ±8.0 mm and sheet length ±10.0 mm.
- The corrugated sheet for the S-8 fence should not have a crescent shape of more than 1.0 mm per 1.0 m of profile length for a sheet length of up to 6.0 m and no more than 1.5 mm for a sheet length of more than 6.0 m.
- 8 mm corrugated sheeting should not have sheet waviness in flat areas of more than 1.5 mm and 3.0 mm on the bends of the sheet edges.
Galvanized corrugated sheet C-8 is marked in accordance with the requirements of GOST 24045-94. Thus, the designation “profiled sheet S-8-1150-0.5” is deciphered as follows:
- C - wall;
- 8 — profile trapezoid height, mm;
- 1150 - useful (working) profile width;
- 0.5 — metal thickness of the original rolled steel billet;
Application of C8 corrugated sheets
Profiled sheet C8 is not used in load-bearing structures, since the ability of a profiled sheet to withstand load depends on the height of the wave, and 8 mm is the smallest value. Therefore, such corrugated sheeting is mainly used for the following tasks:
- finishing of building facades;
- production of sandwich panels;
- production of auxiliary buildings on sites by private developers: warehouse, barn, utility block, shower, toilet and others;
- construction of fences in areas where strong gusty winds are not typical.
To solve these problems, C8 profiled sheet with a polymer coating is especially relevant. It is aesthetically pleasing and has a longer service life than the galvanized version. Thus, polyester applied to C8 corrugated sheeting extends its service life from 10-15 years to 20-30, that is, approximately twice. If you use pural as a coating, then the service life of the profiled sheet can easily reach 50 years or more.
In addition to the increased service life, C8 corrugated sheeting with a polymer plastisol coating is resistant to mechanical damage, since protective covering applied in a layer of 200 microns. This profiled sheet is good for use in areas characterized by hail, frequent dust storms and other atmospheric phenomena that can damage the surface of the material.
Profiled sheet C-8 with a polymer coating made of PVDF is not so protected from mechanical damage, but it is chemically resistant to acids, alkalis and other active substances. Therefore, such corrugated sheeting is used in industrial regions, especially if the production is chemical, next to busy highways and on the shores of salty reservoirs.
In addition, S-8 polymer corrugated sheeting can be double-sided, so the fence will look equally good both outside and inside. In addition, double-sided coating extends service life.
Profiled sheeting S-8 - technical characteristics and dimensions
Profiled sheet C8, due to its low weight, is very convenient to install. For example, when constructing a fence from corrugated sheet C8-1150-0.6, the weight of one square meter of fencing will be only 5.57 kg. The same applies to roofing, and the lower the weight of the roofing covering, the cheaper the rafter system.
The cutting dimensions of C8 corrugated sheets can be from 0.5 to 12.0 m, which makes it possible to reduce to a minimum the number of installation joints when using this material for roofing of residential buildings. How much corrugated sheet C8 weighs can be seen in the table below.
The working width of the C8 profiled sheet is determined as the difference between the full width and the amount of the installation longitudinal overlap with adjacent sheets.
When calculating the purchase volume of C8 corrugated sheets, the weight of the batch is determined as follows: the mass of C-8 corrugated sheets is multiplied by the length (area) of the sheet and by the total number of sheets.
The table below shows the data necessary to calculate the strength of structures made from C8 corrugated sheets.
| Designation stamps corrugated sheets |
Thickness, mm |
Square sections, cm² |
Weight 1 lm length, kg |
Reference values per 1 m width |
Weight 1 m², kg |
Width blanks, mm |
|
| Moment inertia Iх, cm4 |
Moment resistance Wx, cm3 |
||||||
| S8-1160-0.50 | 0,50 | 6.25 | 5.42 | 0.47 | 0.86 | 4.68 | 1250 |
| S8-1160-0.55 | 0,55 | 6.875 | 5.91 | 0.51 | 0.93 | 5.10 | |
| S8-1160-0.60 | 0,60 | 7.50 | 6.41 | 0.54 | 1.01 | 5.52 | |
| S8-1160-0.63 | 0,63 | 7.875 | 6.70 | 0.56 | 1.05 | 5.78 | |
| S8-1160-0.70 | 0,70 | 8.75 | 7.39 | 0.61 | 1.15 | 6.37 | |
C8 corrugated sheets - price, purchase, calculations
You can buy C-8 profiled sheets in any store of the construction hypermarket chain or directly from one of the many manufacturers by placing an order by phone or email.
| Brand profiled sheet |
Thickness metal, mm |
Profiled sheet S-21, linear meter weight, kg |
Width leaf, mm |
Profiled sheeting S8-1150, Price with VAT, rub. |
|||
| up to 3 t | 3-10 t | from 21 t | |||||
| slave | full | linear meters | linear meters | linear meters | |||
| Galvanized corrugated sheet S-8 | |||||||
| S8-1150 | 0,4 | 4,4 | 1150 | 1187 | 187 | 179 | 175 |
| 0,5 | 5,4 | 209 | 200 | 195 | |||
| 0,55 | 5,9 | 237 | 225 | 220 | |||
| Galvanized sheet profiled with polymer coating S-8 | |||||||
| S8-1150 | 0,4 | 4,4 | 1150 | 1187 | 249 | 238 | 232 |
| 0,5 | 5,4 | 278 | 265 | 259 | |||
Notes
- The table shows the cost of profiled sheets made from rolled steel grade 01 in accordance with GOST R 52246-2004 (ON steel in accordance with GOST 14918-80).
- For painted profiled sheet S-8, the price is indicated for a profile with a polymer coating made of polyester.
- When calculating the costs of C8 corrugated sheeting, the price per sheet is determined by multiplying the price of one linear meter to the length of the corrugated sheet.
In the table below, the cost of C8 corrugated sheets is indicated based on average market prices. You can buy C8 corrugated sheeting by first checking its cost at the time of purchase from the seller or a regional representative of the corrugated sheeting manufacturer.
S-8 corrugated sheeting with a polymer coating is more expensive than galvanized sheeting, and the price can differ by 20% or 200% - it all depends on the type of polymer used. Thus, the most expensive pural costs 500-550 rubles per 1 m² with a metal profile thickness of 0.5 mm, which is more than double more price just a galvanized version. On the other hand, the price for C8 corrugated sheeting with polyester coating is shown in the table, and the difference is only 30%.
When buying a C8 profiled sheet, the price of which is significantly lower than the market average, be sure to request a certificate in order to check the origin of the product using the batch number.
Sometimes corrugated sheeting manufacturers sell substandard products at reduced prices. Such material can be used to install a fence on the internal boundaries of the site or to build sheds and various outbuildings. However, do not purchase C8 polymer corrugated sheeting if its surface is damaged - in this case it will corrode very quickly and will not last very long.
Combining C8 corrugated sheets various colors and shades, you will make the house attractive and elegant, and the fencing personal plot made from this material will be quite durable and reliable.
