How much does a sheet of slate weigh. Slate weight: is it important? Wide geography of sales

Slate is an inexpensive building product and has good performance parameters. The work associated with its installation on the roof is complicated by the significant weight of the material. This circumstance should be taken into account when drawing up a project and building a truss system.

The range of slate and its weight

This material is made for arranging the roof from a mixture consisting of Portland cement, asbestos and purified water. Slate is used not only for laying on the roof, but also for wall cladding.

During the manufacturing process, all components are mixed in the appropriate proportion, then poured into molds and left until final hardening. The finished material is resistant to moisture and ultraviolet, does not ignite and is not dangerous to temperature changes.

There are two types of slate:

1. Wave. In this case, the sheets of roofing material are rectangular in shape and, due to the molding process, are distinguished by a wavy profile. Such slate is laid on roof slopes, since it drains water well due to the presence of gutters. Manufacturers strongly recommend laying it, provided that the slope of the roof is from 12 degrees. Considering how much one sheet of this type of slate weighs, installation must be carried out on a reinforced crate.
2. Flat. Compared to wave material, it lacks a characteristic relief. Also, the dimensions of the flat slate are different. Flat slate is made of asbestos cement in the form of a square or rectangle. It is usually used for the construction of fences, wall cladding and for the purpose of isolating areas that come into contact with elements of heating equipment and a chimney. Flat slate is used as a covering when the roof slope exceeds 25 degrees. Flat sheets have greater mechanical strength and higher resistance to liquids and low temperatures. It also does not hurt to know what sizes of flat slate sheet are on the market.

How much does a slate sheet weigh

Depending on the type of material and dimensions, the weight of the slate sheet is from 23 to 39 kilograms. This means that a load of 9-17 kilograms is applied to one square of the roof structure area - this is without taking into account the insulation.

To mount a slate coating, you should determine the mass of the roofing cake when calculating the foundation and truss system for the house. Without the required margin of safety, the roof structure will warp and collapse as a result.

Number of waves per sheet

When arranging roofs, the wave type of products is in demand. Manufacturers make wave slate - the dimensions of the sheet and its weight are different. It is used both for small-sized buildings in private housing construction, and for the construction of industrial facilities with a large area.

Slate is implemented with the following types of profile:

• standard;
• unified;
• reinforced.

As for consumers, it will be easier for them to use another classification, which is based on the number of combs on one product:

1. Material 5-wave. He appeared on the building materials market recently. It has not yet found an effective application. The parameters of the 5-wave sheet are similar to the dimensions of the 8-wave sheet, but since the width of the ridge is greater, the usable area of ​​​​this coating is 1.6 m². This means that the overlap takes 20% of the surface from it.
2. 6-wave. In this case, the size and weight of the slate is 1125x1750 centimeters and 26-35 kilograms, respectively. The thickness of the sheet is 6-7.5 millimeters, and the distance between the waves is 20 centimeters. The 6-wave slate has a reinforced profile and therefore it is laid on roofs in regions with a significant wind load. They are also blocked by industrial buildings of a large area.
3. 7-wave. The dimensions and weight of the slate sheet are as follows: 850x1750 centimeters and 23 kilograms with a thickness of 5.8 millimeters. Due to the small area of ​​this 7-wave traditional coating and light weight, it is often used in private small-sized housing construction.
4. 8-wave. The sheet parameters of this type of slate are 1130x1750 centimeters, and the thickness is 5.2 and 5.8 millimeters. Depending on the thickness, the weight of the slate is 23-32 kilograms. Due to its impressive dimensions, it is used in the industrial sector.

Slate is a durable coating - it is operated for at least 20-30 years, it is not combustible and can withstand temperatures from -50 to +80 degrees. The disadvantage of this material is the splitting of the sheet as a result of a point impact. This feature should be taken into account when transporting, laying and storing asbestos-cement products.

Features of mounting slate on the roof

Possession of information on how much a slate sheet weighs allows you to decide on the device of the roof truss system on which this material will be mounted. Significant weight is the main feature of roofing with coatings produced from asbestos cement.

To eliminate problems with the operation of a slate roof, professionals advise:

1. Be sure to develop a project and make the necessary calculations. The roof in this case exerts a significant load on the truss structure and the foundation of the structure, therefore, before performing installation, everything must be calculated.
2. Calculate options. Slate is an inexpensive product, but a significant amount of slate sheet requires strengthening the base of the house and the roof frame. A large amount of concrete mortar and the use of quality wood are not cheap, so sometimes it makes sense to install a lighter and more expensive coating, such as corrugated board or soft roofing.
3. Don't forget the overlap. Due to inexperience, some craftsmen forget to take this nuance into account when calculating building materials for arranging a slate roof.

When buying, you should carefully evaluate the external condition of the slate so that the coating is used no less than the period declared by the manufacturers.

The functional characteristics of the roof depend on a number of factors, including the features of the truss system, the characteristics of the base, the technical properties of hydro and thermal insulation, as well as the roofing material. All components of the roofing pie must match the characteristics of each other and the supporting frame of the roof. The weight of the slate is one of the parameters that should be taken into account when designing a building truss system with sheet asbestos-cement coating.

Pallet with slate sheets

Why is it important to determine the weight of a slate roof

If you decide to choose classic wave asbestos-cement slate as a roof covering, it is important to carefully choose the material itself (slate sheets vary in size and weight), as well as designing the supporting roof frame.

The thicker the asbestos-cement material, the higher its strength!

By choosing an asbestos-cement material of increased thickness, it is possible to equip a roof with high strength indicators. However, such a roofing will have an increased load on the frame, that is, it will be necessary to design a truss system of increased strength - it will have to withstand with a margin:

• slate weight;
• snow and wind loads (their parameters depend on climatic features and slope slopes);
• operational loads (weight of structures installed on the roof, people involved in installation work, cleaning or repairing the roof).

A reinforced truss system requires the use of thicker timber and boards, the installation of a crate with a smaller pitch. This not only increases the cost of building a roof, but also significantly increases its weight.. In turn, the walls and foundation of the building must be strong enough to withstand the load from this structure.

Obviously, the weight of the roofing should be calculated at the design stage of the building in order to select the optimal parameters for all structural elements of the roof, walls and foundation. To do this, you should have information about how much a slate sheet weighs.

When designing a slate roof, it is necessary to determine the method of laying the elements and the size of the horizontal and vertical overlaps. This parameter directly depends on the degree of inclination of the roof slopes, snow and wind loads: a sloping roof must have increased strength relative to the snow load and requires increased overlaps, reinforced lathing. Having calculated the asbestos-cement material for the roof (the required number of flooring elements is determined), it is possible to calculate the total mass of the roofing.

With regard to efficiency, asbestos-cement material is one of the most affordable. But if you're designing a reinforced roof, the investment in truss system components can outweigh the savings in roofing.

Main characteristics

The material for the manufacture of slate is a mixture of Portland cement with asbestos, with the addition of water (ratio 4:84:11), while asbestos fibers function as reinforcement, increasing the strength of the sheet material and resistance to tensile loads. Not all manufacturers adhere to GOST, so the strength index of a particular product may depend not only on the thickness, but also on such parameters as the size of asbestos fibers, the fineness of cement grinding, and the density of the finished material.

Two types of asbestos-cement roofing are produced - a flat and wavy sheet with a number of ridges from five to eight. Wavy slate is divided into three types:

1. VO - a sheet of a standard profile, rectangular shape 1120x680 mm;
2. VU - reinforced, designed for use in the construction of industrial facilities, characterized by a size of 2800x1000 mm;
3. UV - a material with a unified profile, medium format (most often 1750x1130 mm), primarily in demand in civil engineering.

Private developers for arranging roofs usually prefer 7-wave or 8-wave slate. Roofing material differs in the height of the ridge and the distance between the top points of the ridge. Accordingly, popular profiles have the following parameters:

1. 40/150 (crest height is 40 mm, wave pitch is 150 mm);
2. 54/200 (ridge height is 54 mm, wave pitch is 200 mm).

The wave height indicator is indicated for ordinary waves and overlapping, while the height of the extreme, overlapped wave is 32 mm for type 40/150 and 45 mm for type 54/200.

The standard thickness of a seven- and eight-wave asbestos-cement flooring element is 5.2 and 5.8 mm (profile type 40/150), or 6 and 7.5 mm (profile type 54/200). Wave slate of this type is in high demand among private developers due to the relatively small difference between the usable and nominal area of ​​the roofing elements.

Weight of a unified seven- and eight-wave slate

Sheet with seven waves can be produced with the following parameters:

• Standard length - 1750 mm;
• The width is 980 or 1130 mm;
• Thickness 5.2 or 5.8 mm.

The weight of a seven-wave slate sheet depends on its thickness and width; profile type and length are the same (see table below).

Table. Types of seven-wave slate and its weight

Eight-wave slate is produced in the form of sheets of the following format:

• Standard length - 1750 mm;
• Standard width - 1130 mm;
• The thickness depends on the profile and can be 5.2 / 5.8 mm or 6.0 / 7.5 mm.

The weight characteristics of the eight-wave slate, taking into account the dimensions and type of profile, are in the table below.

Table. Types of eight-wave slate and its mass

It is important to take into account the mass of one element of a wave roofing when planning roofing work - each sheet has to be lifted onto the roof, and if slate weighing 18 kg can be handled alone, then sheets weighing 26 kg or more must be lifted with an assistant.

To calculate the weight of the roofing, you need to calculate how much weight one square meter of slate has.

How to calculate the weight of a slate roof

Using tabular values, you can get information about how much a slate of a certain type and dimensions weighs. But the actual weight of the material depends on the manufacturer - it may contain chrysotile, the amount of asbestos and its mechanical properties may differ from those prescribed by GOST, etc. If you want to calculate the mass of the roofing of the future roof as accurately as possible, it is recommended to select a reliable manufacturer of asbestos-cement material in advance - when calculating, it is convenient to focus on the weight of the corrugated sheets that it produces.

8 wave sheet with dimensions 1750x1130x5.2 mm type 40/150 weighs 20.6 kg.

We calculate the area of ​​​​the sheet (in meters) using a calculator: 1.75 x 1.13 \u003d 1.9775 (m)

Then we divide the weight of the sheet in kilograms by the area of ​​the sheet in meters:

20.6: 1.9775 = 10.417 (kg) weighs 1 m 2 of an asbestos-cement sheet with the given parameters.

This calculation allows you to find out the weight of one square. meters of wave material based on the total area of ​​the sheet, not useful!

This point must be taken into account when calculating the weight of the roof. When designing a roof, the amount of material needed is calculated, including asbestos-cement sheets. The laying of the elements is carried out with an overlap, so part of the sheet is “lost” - that is why the concept of the usable area of ​​the flooring element appears. But when calculating the weight of the roofing, overlaps cannot be neglected - their mass does not go anywhere.

It should also be taken into account that when laying slate with trimming corners, part of the mass is lost - this leads to some reduction in the total weight of the roofing!

Experts note that the functionality of the roofing will depend on such factors as the characteristics of the base, the structure of the roof structure, the presence of heat and vapor barrier, and the type of roofing material. All described parts must comply with the technical specifications. When designing a rafter system, the coating of which is made of asbestos-cement sheets, one should take into account such an important parameter as the weight of the slate. It is the mass of this wave roofing product that our article will be devoted to.

Why you need to know the mass of slate roof

The coating is considered one of the main ones in the creation of roofs for household buildings, therefore, its choice must be approached with special responsibility. With the same overall dimensions, the weight of 1 sheet of the material in question will not be the same. This is especially important when designing a truss structure. But there is one important rule here: the thicker the asbestos-cement products are, the stronger they are. Consequently, with an increase in thickness, the weight of the 7 wave slate also increases.

When choosing such materials, it is possible to make a roof with a particularly durable coating, but this option will put a significant load on the frame. In this regard, when designing truss structures, the following indicators must be taken into account:

1. How much does a slate sheet weigh.

2. Maximum loads from the effects of wind and snow lying on the surface.

3. Loads during roof operation. Here, the weight of building structures and people who carry out installation work are taken into account.

When using a thickened wavy version for the manufacture of a truss structure, a thick wooden beam is used, as well as thick boards, the step of the crate is reduced. In such a case, the cost of installing the roof increases, and its weight also increases. In this regard, at the design stage, it is necessary to calculate the foundation so that it can withstand all the loads. One of the main values ​​​​that are taken into account is the mass of slate 8 wave or other materials for mounting the coating.

At the design stage of the roof, you need to decide on the method of laying asbestos-cement products. The amount of horizontal and vertical overlap of the sheets will depend on the slope of the roof, wind and snow load. Sloping roof structures are subject to increased requirements for strength. Sheets should be laid with increased overlaps on a reinforced crate. During the calculations, the weight of 1 m2 of slate is determined, and then the mass of the entire coating.

As for the financial costs of roofing, asbestos-cement products are considered one of the cheapest. When building a reinforced roof, the cost of the truss structure will exceed the cost of the cover. In some cases, it is necessary to know the weight of flat slate, and especially if such material is used for lining the ceiling in garages, sheds or other auxiliary structures.

What are they made from

The material in question is made from such raw materials as Portland cement, non-combustible substance asbestos and water. The proportion of these components is 4 to 84 to 11. In the general composition of the mixture, asbestos-cement fibers perform the function of reinforcement. This feature makes the sheets resistant to tensile forces and other mechanical loads. At the moment, not every manufacturer adheres to the requirements of state standards, so the strength indicators of a particular product will depend not only on the thickness, but also on the size of the asbestos fibers, the fraction of cement particles.

flat slate

Asbestos-cement products are supplied to the construction market in the form of flat and wavy, and the latter can have from 5 to 8 ridges. The thickness of materials with a flat surface can range from 5 to 40 millimeters, but the most common options are sheets with a thickness of 6 and 8 mm, as well as 10 mm.

Each of the described options has its own scope of use:

1. Asbestos-cement sheets with a thickness of 6 millimeters are designed for subfloor installation and installation of interior partitions, they are also used for finishing the house from the facade. Experts recommend painting the surface of flat slate. A layer of paint will give the product a waterproofing effect.

2. Moisture-proof and fire-resistant asbestos-cement sheets of 8 mm thickness are used for exterior decoration of facades of brick buildings, frame houses and panel buildings. The main property of the described products is considered to be an increased service life.

3. Flat slate sheets with a thickness of 10 millimeters are used for finishing the facades of buildings, the roofing of country houses, as well as the installation of fences. In addition, similar material can be used for interior partitions.

As you know, the weight of a flat slate will depend on its overall dimensions. Let's take a closer look at this option:

• flat unpressed, with dimensions 3 * 1.2 * 0.012m weighs 83 kilograms;
• weight of a slate sheet with dimensions 3 * 1.5 * 0.01m - 87 kilograms;
• unpressed - with dimensions of 3 * 1.2 * 0.01 m have a mass of 78 kilograms;
• products 3 * 1.2 * 0.035 meters have a mass of 293 kilograms;
• a similar version with dimensions of 3 * 1.5 * 0.025 m has a mass of 250 kilograms;
• flat pressed 3 * 1.5 * 0.02 m - 180 kilograms.

Wavy slate

The materials under consideration can be divided into three types:

• VO - sheets with dimensions of 1.12 * 0.68 meters.
• VU - reinforced for industrial construction has dimensions of 2.8 * 1 meter.
• UV - unified wavy for civil engineering with dimensions of 1.75 * 1.13 meters.

For the roofing of country houses and master buildings, 7 and 8 wave are mainly used. Such products have the same size, they are distinguished only by the distance between the tops of the ridges. In the 7th wave sheet, the crest has a height of 54 millimeters, the distance between adjacent waves is 200 millimeters. In wave 8, the height of the crest is 40 millimeters, the distance between the tops of the waves is 150 millimeters. And now let's take a look at how much slate 7 wave weighs. The length of such a product is 1.75 meters, the width can have parameters of 0.98 or 1.13 meters, the thickness of the material is 5.2 or 5.8 mm. Consider specific examples:

• The weight of slate 7 wave with dimensions of 1.75 * 0.98 * 0.0052 meters is 18 kilograms;
• The same version with a thickness of 0.0058 meters weighs 21.8 kilograms;
• The weight of slate 1 of seven waves with dimensions of 1.75 * 1.13 * 0.0052 meters is 18.7 kilograms;
• A similar one - 0.0058 meters thick - weighs 23.2 kilograms.

How much does slate 8 wave weigh? The mass of the described products also depends on the overall dimensions:

• The weight of slate 8 waves 1.75 * 1.13 * 0.0052 meters is 20.6 kilograms;
• Similar - 0.0058 meters thick - 26.1 kilograms;
• The same ones with a thickness of 75 millimeters weigh 35 kilograms.

The weight of a particular product must be taken into account, and especially if the transportation of materials to the roof is carried out manually. One person can handle products weighing between 18-20 kilograms, but if the weight exceeds 25 kilograms, an assistant must be involved in the moving work.

If not so long ago, slate was considered the traditional and most sought-after roofing material, today it is a rather rare roofing option for new buildings. Asbestos-cement slate is found infrequently and mainly in utility rooms, garages and other outbuildings. At new facilities, it was replaced by modern, more reliable, beautiful and durable roofing materials. But old buildings are still in most cases covered with asbestos-cement slate. Such buildings have been in operation for many years, in connection with this there is a need for a complete replacement of the roof.

Before making the final decision on dismantling the old slate roof, you should weigh the pros and cons. The fact is that replacing the roof is a rather expensive construction event. During its execution, unforeseen problems may appear, which further increase the estimated cost of repairs. When should the old slate be dismantled?

1. Critical physical wear. Externally, the slate sheets do not have significant damage and look quite normal, but due to natural aging, the strength of the slate decreases significantly, it becomes very brittle, in some cases the sheets are easily broken off by hand. Such a coating can receive significant damage at any time during heavy rain. As a result, water gets not only into the attic, but also into the living rooms. You will have to repair the decoration of the ceilings and walls of the interior, and this greatly increases the cost of repairs. Conclusion - you should not expect big problems to appear, it is much more profitable to replace the old slate in a timely manner.

   

2. Lots of mechanical damage. This refers to non-through holes in the coating after hail - in such cases, the replacement of slate is required. There are situations when technological errors are made during the installation of the truss system. The bearing units of the structure do not have sufficient strength and stability; during the increase in loads, they change their geometry and spatial position. As a result, large cracks appear on the slate sheets. If they are located on the upper ridges, there are no big problems, leaks are almost invisible and do not constitute problems for attic spaces. But cracks can also be located on the lower waves, and here, during the rain, a lot of water flows, it will definitely fall on the rafter system. As practice shows, it is useless to repair such cracks. There is only one way out - depending on the degree of damage, change several sheets of slate or the entire roof.

   

3. Unsatisfactory appearance. Mosses and lichens can grow on slate roofs, which significantly worsens the appearance of the building. There are ways to mechanically clean the coating using electric circular grinders, but experienced builders strongly do not recommend doing such work. Firstly, it is very difficult and long, and the effect is unpredictable. Secondly, there are risks of damage to the roofing.

   

Depending on the condition of the slate and the skills of the craftsmen, the old coating can be reused or it has to be taken to a landfill for construction waste disposal. For transportation, you should approximately know the total weight, this value is determined taking into account the mass of a square meter of slate during disassembly.

Prices for various types of slate

How to determine the weight of slate 1 m2 during disassembly

The technical parameters of slate sheets depend on the specific type and production technology of the material. Given the geometric shape of the sheet, two types are distinguished.

wave slate

It is used as a roofing and facing material, has a rectangular shape. The number of waves is from five to eight, their height and thickness vary.

Wave slate is installed on slopes with a slope of at least 12 °. The material is made on automatic lines from a special mass, depending on the features of the molds, it can have a different number of waves. The more waves - the higher the bending strength parameters, this allows you to reduce the thickness of the slate while maintaining the original technical data. There are 5, 6, 7 and 8 wave asbestos cement slate sheets. Currently, five- and six-wave slates are almost not produced, most companies have switched to the production of eight-wave slate, it is rare to find seven-wave slate.

Technical characteristics of standard brands of slate

Slate has regulated marking requirements, inscriptions are applied to the extreme wave from the front side. For example, marking 1750 × 1130 × 5.2 mm, 40/150 means that the sheet has a length of 1750 mm, a width of 1130 mm and a thickness of 5.2 mm. Wave height 40 mm, distance between crests 150 mm.

Table. Coating weight depending on the type of slate.

Words such as "slate" or asbestos-cement sheets are familiar to many firsthand. Today, although this is an old-generation roofing material, nevertheless, it still does not lose its leading position in the construction market. It is easy to use, inexpensive and durable.

How many have thought about the weight of 1 m 2 of slate. Of course, this is not so important for people far from construction, another thing is professionals or amateur developers who intend to cover the roof with these materials. The weight of slate is of particular importance for them, since, for example, the calculation of the truss system depends on it.

How much it weighs is also important because its laying is done manually, that is, it requires physical effort, and considerable. The mass of the sheet must also be known when organizing the transportation of building materials in order to select transport with the appropriate carrying capacity.

Material characteristics and dimensions

Today, the most common material, which includes asbestos, cement, mixed with water. The components are in the ratio of 85 to 11 and to 4. There are ACLs - wave and flat, each of which has its own modifications:

• – pressed and unpressed;
• - reinforced, conventional and unified.

They also differ in their dimensions, which, in addition to length and width, include wave parameters such as height and pitch, which determine the profile of the sheet. There are two of them - 40 by 150 and 54 by 200 mm. By the number of waves, they are, say,.

Another version of slate is bituminous, in the bituminous base of which synthetic fibers and a plasticizer are added. The mass is baked at a high temperature, then it is molded under pressure. The resulting sheets are similar to asbestos-cement only in form. As for the characteristics of the materials, they are very different, for example, bituminous ones are much smaller in weight, say, for one sheet of 2 m 2 it is only from 6.5 to 7 kg. This is an environmentally friendly material, easy to install, chemically neutral, resistant to the formation of fungus, mold and more.

The most widespread among the available species is bituminous, etc. still received asbestos-cement. The weight of the slate is determined primarily by the dimensions and thickness of the profile.

Sheet weight 7 wave, 8, 6

ACL can be transported to the construction site using small-sized vehicles. Obviously, its load capacity is strictly limited, so it is clear why it is so important to have an idea of ​​​​how much 1 sheet of material weighs.

Considering the large assortment of ACL, we will determine the parameters of the main varieties, in particular, how much slate weighs 7 wave, 8 and weight 6 wave. This parameter gives an answer to such significant construction questions as whether the structure will be able to withstand the entire mass of the coating, or whether it will cause excessive shrinkage.

A certain confusion in the state of affairs is introduced by the fact that sheets made by different manufacturers according to their own specifications may have some variation in length and width. Naturally, this must necessarily affect the final weight of the product.

Therefore, we consider the profiles made according to the requirements of the state standard 30340-95. In suburban construction, 7-8-wave profiles of size 40 by 150 are mainly used. As indicated in GOST, their thickness can take two values ​​​​- 5.8 and 5.2 mm. In the first case, the mass

• an eight-wave product is equal to 26.1 kg;
• seven-wave - 23.2 kg.

A thickness reduction of only 0.6 mm lightens the profiles by approximately 4–4.5 kg.

It is performed with an overlap of one or two waves with an adjacent sheet, which reduces the usable area. It is its value that is used when calculating the number of profiles required to cover a given roof.
When calculating, you can use the following hint: to cover 100 m 2, you need 64 eight-wave profiles or 75 seven-wave profiles.

Let us calculate the load exerted by the roofing of wave material per 1 m 2. For an eight-wave profile, the number of sheets (64) is multiplied by the weight of each of them (26.1 kg), after which the result (1670 kg) is divided by 100. As a result, we find that the eight-wave profile acts on 1 m 2 of the roof structure with a load of 16, 7 kg. For a seven-wave, this value is 17.4 kg.

A large load requires more floors, so for buildings with light foundations, eight-wave material is used, since it acts on walls and foundations with less force.

When developing a roof project, the load created by natural phenomena, say, snowfall, is additionally taken into account.
The weight of products of size 50 to 200 (six-wave profile) is determined by its thickness: at 6 mm it is 26 kg, and at 7.5–35.

The mass of this roofing material, in addition to size and thickness, also depends on factors such as the composition and structure of the profile, for example, the degree of grinding of raw materials at the stage of molding the product. Many homeowners today prefer painted material - it is more practical and more weather resistant, not to mention the expressiveness of the roof. So, priming and coloring also leads to a certain increase in the mass of profiles.

Increases the load from the asbestos-cement profile and the increase in humidity. This fact is also taken into account in the GOST standards - calculations related to the mass of these products are performed, taking into account the humidity of 12%.

How much does flat slate weigh 10 mm, 8 mm

Flat slate has also received wide application in various fields. The weight of the sheet in this case is determined not only by the dimensions, but also by whether it is pressed or unpressed. If an unpressed flat ACL weighs 18–104 kg, then a pressed one weighs 20–162 kg.

This material is often used as a roofing material. They cover both small buildings and rather large objects, mainly in the economic sector. This is mainly due to the mass of the product, which is calculated on the basis of an average of 12 kg per 1 m 2 (the minimum value is 10, and the maximum is 14 kg). Parameters are selected depending on the project and construction needs.