Slate 8 wave. Wave slate. How to calculate the required amount of slate

Availability of high-tech and competitive modern roofing materials only slightly displaced slate covering from its leading position. To install the roof of industrial buildings, wave slate is often used, which, due to its large thickness, is highly durable.

Main technical characteristics

Wave slate is easy to use and is budget-friendly and durable building materials. The asbestos-cement composition underlies the technical characteristics of slate:

• the bending strength is 16 MPa;

• residual strength is 90% or higher;

• density is 1.6 g/cm³;

• impact strength indicator is 1.7 kJ/m²;

• frost resistance within 25 cycles;

• the moment of resistance is 36.6 W;

• the workability of the sheet in accordance with the ratio of radius to thickness is 5.5 Pt;

Roofing sheet parameters

In accordance with GOST standards standard size 8-wave slate is 175 × 113 cm. The height and pitch of the wave are 4 × 15 cm. The standard weight of an 8-wave slate sheet is 26.1 kg.

The overlapped wave has a height of 3.2 cm; in accordance with GOST, deviations are allowed in the larger direction - 4 mm, in the smaller direction - 6 mm. The standard sheet thickness is 0.58 cm, with deviations allowed according to GOST for increase - 1 mm, and for decrease - 0.3 mm.

The overlap edge has a width b1 – 4.3 cm, with a possible deviation of 7 mm. The width of such an edge b2 is 3.7 cm, and GOST deviations are not provided for this indicator.

Slate marking involves alphabetic and numerical indicators that inform about the abbreviated designation of the profile asbestos cement sheet slate, number of waves, thickness, regulatory documents.

Colored asbestos slate

Using colored slate as a roofing material allows you to design the roof in an individual and bright style. The color range of the product is represented by gray, brown-red, green, blue and cherry tones.

The color of slate is given by acrylic-based pigments, which, in addition to their decorative function, help protect the roofing from UV radiation, as well as the negative effects of external factors.

In accordance with the design, colored slate is available in two types - and wave:

• Flat colored slate, due to the presence of chrysolite fibers in its composition, has fairly high strength indicators and is used to create fences or temporary buildings.

• Wavy colored slate has increased rigidity. ACLs are produced different sizes and the number of waves. The most popular is colored 8 wave slate.

Colored ACLs are characterized by:

• ease and speed of installation work;

• good physical indicators, including high level heat and sound insulation, no roof overheating in summer, low degree of susceptibility to fluctuations temperature regime and maximum degree of fire resistance.

All colored slate supplied to the construction markets is produced in two ways:

• ACL with resistant paints using a special technology, which consists of applying a resistant coating to mounted sheets acrylic paint using a spray gun. The durability of such a coating corresponds to the service life of the roof itself.

• a method patented by the Balakleya slate plant, which consists of adding a coloring pigment to the asbestos-cement mixture before the hardening stage. The result of this know-how is the acquisition of an attractive appearance by the roof and uniform color at the site of cutting the ACL.

Cost of 8 wave slate roofing

The average price of standard unpainted eight-wave slate, depending on the region, is about 150 - 300 rubles. per sheet, and the price of ACL painted with SV-40 EURO and having the same size is in the range of 250 - 350 per sheet. Laying work depends on the season, as well as the type of roof, and amounts to approximately 350-450 rubles/m².

Let's sum it up

• 8-wave slate thanks optimal sizes can be successfully used not only for installing roofs in the private sector, but also for installing roofs over large areas.

• The use of special water-dispersion paints in the production of ACL not only makes it possible to obtain a beautiful roof covering, but also significantly extends the life of the roofing covering.

• The price of slate is very affordable, and independent installation work can significantly reduce the cost of installing a high-quality and modern roof.

Colored

Eight-wave slate* is a standard roofing sheet that has been used in construction in our country for more than 60 years. It has symmetrical edges requiring overlapping sheets on the base SP 17.13330.2011 Roofs. Updated edition of SNiP II-26-76. The wave height of this profile is 40 mm and the wave pitch is 150 mm. The standard thickness is - 4.7; 5.2; 5.8 mm.

Lightweight eight-wave slate sheet with a thickness of 4.7; 5.2 mm is lighter than a 5.8 mm thick sheet, which reduces the cost of slate and simplifies installation. At the same time, slate sheets with reduced thickness retain all the key properties of this product, and are also superior in strength to other roofing materials.

Eight-wave sheets are manufactured using modern equipment, which ensures a smooth surface and precise geometric dimensions.

* Profile 40/150 (NE)

Technical characteristics and dimensions of 8-wave slate

Range

8-wave slate is available in both regular gray undyed and standard colors: indigo (blue), green, chocolate, orange and red. Factory painted slate is more resistant to negative weather influences. The coating lasts up to 6-7 years without losing its properties.

Application

Thicker sheets are used in regions with high snow and wind loads. Thinner sheets should be used in temperate climate zones.
Sheets of eight-wave slate are mainly used in low-rise residential construction to cover the roofs of private and apartment buildings, cottages, townhouses, non-residential buildings (gazebos, garages, etc.).

Slate is the most common roofing material, a leader in its field of application for several decades.

The name “slate” is not entirely correct; real slate is a natural layered mineral.

The exact designation of the roofing material sounds like, but the name “slate” has stuck for a long time and there is no point in changing it.

There are two main types of material available- flat and wave. Flat is used for facing work or for the construction of partitions for auxiliary and utility rooms.

Only wave fiber is used as roof covering, it is stronger and stronger than a flat one, due to the stiffening ribs created by the waves.

The long-term widespread use of slate is a consequence of high reliability, durability and ease of installation. The relatively recent appearance on the market of a variety of alternative roofing coverings made of synthetic materials, metal or bitumen, could not radically change the situation, since the traditional, time-tested approach to materials prevails among builders.

Wave slate is a roofing material in the form of wavy sheets of rectangular shape. To produce slate, a plastic molding composition is used, the components of which are:

1. Portland cement. The grades used are M300-500, the percentage of material present is 80-90%.
2. Chrysotile asbestos. (10-20%).
3. Water.

The roles of the components are distributed as follows: Portland cement acts as a connecting link, and chrysotile asbestos is a reinforcing element. After the mass hardens, a strong and hard sheet material is obtained.

Traditionally produced light gray natural color material, but in Lately coating samples appeared on the market made with additives of dyes to give a specific color, which significantly improved the aesthetic perception of the material.

Installation is carried out by fastening the sheets overlapping using slate nails to the rafter system. Skates and connecting elements, components roofing, are also produced by industry, but often builders do not know about this and use metal elements, which worsens appearance roofs.

Wave slate sheet sizes (7 and 8 waves)

According to GOST, there are only two standard sizes:

1. 40/150 — wave height 40 mm, wave length — 150 mm.
2. 54/200 — wave height 54 mm, wave length — 200 mm.

The dimensions of 8-wave slate also vary depending on the type. By profile type, sheets are divided:

Unified

Marked with the abbreviation UV.

Dimensions according to GOST

Slate 8 wave size sheet:

• Sheet width - 1130 mm;
• Length - 1750 mm;

Slate size 7 wave:

• Sheet width - 980 mm;
• Length - 1750 mm;
• Sheet thickness is 5.8 mm for profile 40/150 and 6-7.5 mm for profile 54/200.

Slate size 6 wave:

• Sheet width - 1125 mm;
• Length - 1750 mm;
• Sheet thickness is 5.8 mm for profile 40/150 and 6-7.5 mm for profile 54/200.

Wave slate size

Ordinary

Denoted as VO.

• Sheets 680 mm wide;
• length - 1120 mm;
• sheet thickness 5.8 mm for profile 40/150 and 6-7.5 for profile 54/200.

The size of 8 wave slate can vary within insignificant limits.

Reinforced

Profile marked VU, intended for industrial facilities, has an increased thickness - 8 mm, sheet width 1000 mm, length - up to 2800 mm.

The maximum permissible dimensional deviations are ±15 mm in length and +10 and -5 mm in width.

Number of waves

The number of waves is already determined by the name - 7-wave and 8-wave.

In individual construction, a 7-wave sheet is most often used, since it is lighter and easier to lift to the installation site manually.

Wherein, his effective area less than 8-wave, since the amount of overlap for both brands is the same and the difference of one wave cannot be compensated for by anything.

However, a study of demand shows the predominant use of the 7-wave option.

How much does a slate roof weigh?

Sheet weight is an important indicator on which the load on rafter system. So, let's find out how much a sheet of 8-wave and 7-wave slate weighs.

The weight of the 40/150 profile sheet is:

• 23.2 kg— weight of slate 7 wave;
• 26.1 kg— slate weight 8 wave.

For profile 54/200, the weight is 26 and 35 kg, respectively.

The weight of 8 wave slate 1 m2 is approximately 10.41 kilograms.

It is noted that the weight of slate is greater than that of its competitors among roofing materials, which creates certain requirements for the design of the rafter system. Wind and snow load , with a large roof area, the weight of water absorbed by the coating during rain may play a role.

Corrugated slate weight

Effective area

The sheets are installed with an overlap, 1 or less often 2 waves are overlapped. In this case, the useful area of ​​the sheet is reduced by the amount of overlap.

• For a 7-wave sheet, the usable area is 1,336 sq. m.;
• Useful area of ​​8 wave slate - 1.57 sq.m.

The dimensions are indicated with an overlap of 1 wave, which is most often used in construction. Sometimes in some places it may be tempting to lay the sheet end-to-end to save material.

CAREFULLY!

It is impossible to lay sheets end-to-end, as leaks will appear at all joints.

Saving one or two sheets will result in water entering the room.

Overlap width

Advantages and disadvantages of slate covering

Wave slate has a number of undeniable advantages:

• Long service life. On average, the coating retains its quality for about 40 years or more, depending on the conditions of use. It is noted that even under the most unfavorable factors, the coating lasts at least 10 years.
• Easy to install. The work does not require high qualifications, it is enough to have general idea about styling techniques.
• Allows partial renovation or replacing individual sheets that have become unusable.
• Material strength promotes safety during installation - the slate covering can easily support the weight of a person and allows walking on the covering.
• Does not accumulate electrical charge, absolutely safe in terms of fire.
• Much cheaper other roofing materials.
• Relatively light weight coating allows you to do without construction lifting equipment during installation.

Advantages of coating

It is impossible not to mention negative qualities slate. These include:

• Fragility of the material. Slate is not plastic and does not allow any deformation.
• Moisture absorption capacity shortens service life and causes the formation of fungus and mold; over time, moss appears that must be cleaned off. This deficiency can be neutralized by coloring.
• The content of asbestos as a component of the material is a significant health hazard.

NOTE!

Asbestos is a strong carcinogen, which caused a reduction in its use in industry.

This is the main reason for the displacement of slate from the market, although there are no definite medical statistics on this matter. There is data for enterprises showing the percentage of morbidity among workers, but there is no statistical information for residents of slate-covered houses.

Nevertheless, the danger exists and must be taken into account. Installation work should be done using individual means respiratory protection.

Material deficiencies can be neutralized without any particular difficulties, you just need to be aware of them and take appropriate measures to prevent possible incidents. At the same time, the obvious advantages, tested and confirmed by many years of practice, convincingly speak in favor of slate as an advantageous and reliable roofing covering.

Useful video

The dimensions of the slate roof can be seen in the video:

Conclusion

The use of wave slate roofing is a completely justified choice, determined by high operational properties material combined with the lowest price. The coating justifies the cost of purchase and installation due to its long-term service life, which can be significantly increased with periodic maintenance or painting of the roof.

The material does not create excessive load on the rafter system; it is available and widespread everywhere. Unified dimensions, if necessary, allow the use of sheets from different manufacturers.

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