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For the most part, and this is over 51% individual houses, cottages and garages covered slate sheets. In the agricultural structure, the use of this material reaches 80%. Such popularity was achieved due to the acceptable value of asbestos-cement roof, operational characteristics and light installation. Of course, many consumers will tell about the harmful of the slate, what kind of damage he causes human health. However, not everyone can specifically substantiate the negativeness of the material. The article will describe in detail everything as for asbestos-cement roofs.

Are asbestos-cement sheets?

The classic recipe includes the following components: Portland cement, water and asbestos. So, speaking of danger, the last element is meant.

Asbestos cement roofing photo

Mostly asbestos meets two species that differ in mineral groups:

• chrysotyl, whose microscopic shape is the finest tubes. Mineral is resistant to caustic chemical compounds (alkalis), but unstable to acids. The semi-repity fibers occurs in a couple of weeks, then excreted from the human body. Dose Hazardous health does not accumulate even at enterprises engaged in the production of asbestos-cement sheets, should it be about harmfulness roofing on open air?
• Amphiboles with fragile needle-shaped fibers. This group of heavy metal minerals is endowed with high resistance to neutral and acidic medium, but dissolves in alkali. Inhalation of particles produces carcinogenic effect. The half-life is 1.5 years.

So where the prejudice came about the harmfulness of asbestos-cement roof, and the fact is that the chrysotile asbestos in Europe is practically not found, and production was built on amphibole. Accordingly, when scientists revealed harm applied by the amphibole asbestos, then all asbestos-containing building materials were banned. In addition, there is another significant factor - banal competition, because Russia occupies more than 50% of the global market for the production and supply of this product.

Despite the fact that asbestos-cement sheets are harmless to health, when working with them, do not neglect the safety technique. So, when drilling or sawing the material, protective glasses and a respirator are used.

Types of roofs of asbestos-cement sheets

This artificial material is carried out mainly by casting a mixture with further solidification. Asbestos fibers perform a reinforcing role, increasing the strength of the finished product. In this way, flat and wave-like sheets are formed.

Roofs from asbestos-cement wavy sheets Used in the arrangement of industrial, residential and agricultural buildings. They have the following modification:

• IN (Wave ordinary) produced correct rectangular shape with 7 or 8 waves. Standard dimensions According to GOST, 1,750х1 130х5.8 mm, a step is 150 mm, the wave height is 40 mm, the average weight is 26 kg. Special popularity among consumers is a sheet of 1,200x680x5,5 mm weighing 8.5 kg.
• Wu. (wave reinforced) is used for roofs industrial buildings. Distinctive features are the size of the sheet - the length can be 2 300-2 800 mm, the width is 994 mm, the thickness is 8 mm, the step is 167 mm, the wave height is 50 mm and the weight of 36-44 kg.

• Ov (Unified wave) has, as a rule, a 6-wave profile. Product width 1 125 mm, length - 1 750-2 500 mm, thickness 6-7.5 mm. Characteristics determine the purpose of sheets, for example, for residential and social structures, UC-6-1 750, industrial buildings - WC-7.5-2 000 are used.

Application area flat sheets Satisfied with wide. They are used for the device inland partitions, as facing of buildings (inner and outer), as well as to cover the roof.

• The release of sheets is carried out in pressed and unfolded form. Pressed molding involves a greater product weight, higher strength properties. For example, the tensile strength is equal to 23 MPa, against 18 MPa unfolded products. The last sheets are used primarily for internal work.

In addition to the sheets, manufacturers are offered elements intended for the coating of endands, skates and for the intersection of vertical parts with roofs, such as pipes, parapels, exhaust systems.

Advantages and disadvantages

The widespread distribution of asbestos-cement sheets is due to many positive qualities:

• the price of asbestos-cement roof for many consumers is a fundamental factor when choosing a roof material;
• long service life from 50 years or more;
• slate strength, since the dry leaf is able to withstand human weight;
• not heated and does not fade under the action of direct sunlight;

• fire resistance The main advantage of the material, besides, has good electrical insulating properties;
• not afraid of corrosion;
• it has high noise insulating properties, so the sound from rain or hail is minimal;
• can be repaired or replacing individual damaged sheets;
• it is not worth mentioning a low decorative form, today the slate wide range is produced.

However, like any building material, slate has disadvantages:

• the presence of asbestos in the composition is not deadly, but on human health still affects;
• processing with primers or similar solutions is necessary, in the absence of protection on sheets, moss appears;
• small impact resistance requires careful handling during transportation, storage, installation;
• it does not allow to equip the roofs of complex forms, for example, dome-shaped.

What and how to cut slate sheets

At the construction stages, there is a need for cutting material under certain sizes. Works can be carried out by various tools and methods.

• Smooth slice will be able to use the grinder and the cutting stone disk with diamond spraying. With this method, a large accumulation of dust and small particles is formed, so the use of personal protective equipment is required.

• Wooden hacksaw, but it should be borne in mind that changing the pinks will often have. In addition, for large volumes, this tool is not appropriate. To facilitate work, the cut line should be rich in water and leave for a while.
• You can perform perforation on the intended line with a nail or acute chisel, and then break. The only drawback is the rough edge of the material.
• From two sides of the wave, it was made with a grinder or hacksaw, after the sheet is cleaned.

Basic provisions

• The roof slope must be in the range of 25 ° -45 °. It should be remembered that than the steeper of the skate, the higher its waterproof, as snow and molten waters do not accumulate on the surface of the roof. However, the device will need more material.
• In addition to sheets, additional elements will be required: external and internal corners (trays), skating part. They will close all angular joints, thereby providing protection against moisture.
• A nails with a large hat or a dowel-nail, equipped with a washer and a rubber gasket that impede moisture penetration at the fixation points, is used as fasteners. Special wire nails for asbestos-cement roof are also popular.

• To prevent slate splitting, it is necessary to drill holes in advance, the diameter of which should be slightly exceeded the diameter of the nail.
• The length of hardware is calculated as follows: the height of the wave + the thickness of the board or bar of the crate.
• Screw the fasteners should not be brightened to the roofing material, but also leave a big clearance is not recommended. Need to pick up golden middlewhere the nail hat will only come into contact with asbestos-cement sheets.
• All, cut edges are processed by acrylic paint.

Slate Protection

I immediately want to note that the painting of sheets is necessary not so much to improve the aesthetic perception, how much to increase the service life of this roofing material.

• Like any staining, the work begins with the surface of the surface. When selecting the mixture, it is paid to its alkaliiness. Also on the package it is indicated, for which materials the product is intended, in this case it must be present - "for slate".
• If the choice is limited, then you can take an acrylate primer of deep penetration. Perfectly serves as the basis and paint purchased for painting the roof. Only it needs to dilute about 1:10.
• After drying the primer layer, you can move to the painting itself. Paintwork material can be both overseas and domestic production. In principle, there are no special differences in the properties of special differences, but there is a significant difference in value.

• For these purposes, it will be good acrylic paint, the seller should clarify whether it is designed for slate. You can use special rubber paint. Its main differences are heat resistance, high resistance to any weather conditions. When applied, it forms an elastic film that ensures the protection of roofing material.
• The coating is carried out in two stages: the first layer, made on the pure surface, is easily absorbed, in connection with this, the roof seems to be non-uniformly painted. The second applying is called chistov. It should be taken carefully and more carefully.
• For work is used brush, roller or paintopult. The last tool will undoubtedly increase performance, but it will increase paint consumption.
• Coloring is produced in clear warm weather. It is impossible to work on a wet or hot (heated solar rays) of the surface. In these cases, the paint will soon begin to peel.
• Improving the appearance of the old slate is carried out in the same way, only before that the material is cleared by moss, dust and other extraneous particles. A metal brush is used for cleaning, but this process is quite time consuming and will take a fairly large amount of time. Here you can use the electric drill with the appropriate nozzle. Another one effective tool It is a washing machine that is almost any owner of the car.
• If necessary, local repairs are made or the complete replacement of some sheets.

• If the roofing material does not have significant defects, but there are smallest cracks, they can be seen as follows with the following mixture:
  • the cement is divorced by water to the state of liquid sour cream, with the addition of 1 glass of PVA glue on the bucket of the mixture.
  • The resulting solution is covered asbestos-cement sheets. Then you can perform a painting to give a decorative type.

The device of the roof from asbestos-cement sheets

• The weight of asbestos-cement sheets causes the presence of a solid roofing device using an enlarged lumber thickness. For example, diagonal rafting legs (bars of 100x150 mm) of a large length must be enhanced with piping supports.
• The rafters are stacked by upper strapping Wall or Mauerlat (timber with a cross section of 100-150 mm) with a sink of at least 300 mm. The beams are fixed in pre-made grooves. At this stage, the drainage system is mounted.

Asbestos cement roof knots

• If used as waterproofing rolled materials, then we need solid wood flooring. Ruberoid, film, tol or membrane are attached in accordance with the instructions. The material should be positioned vertically, cutting off the length with a margin of at least 50-60 cm, half of which will leave onto another roof slope, the other is to fasten to the eaves with a kind of break.
• The following bands are overlapped with 50-60 mm. The horse is protected by a ribbon of waterproofing material.
• The lamp is performed from the unedged boards 50x100 mm, the distance between them should be so that the asbestos-cement sheet be resting on them in three places. So, for leaf (GOST), the step will be 540 mm, respectively, for a sheet of 1,200 mm long - 600 mm.

• A solid crate must be performed along the eaves, skate, auditory windows or pipes.

Laying

The sheets are stacked right to left and bottom up, thus, preventing moisture in the docking seams. The wave material of this kind is fixed only in the crest of the wave.

There are two main types of installation.

Classical

• This method implies styling sheets of braziness and is suitable for long spans with a small distance between the skate and the eaves. Works begin with the lower part of the front sink. The sheet is fixed in 5-6 points, the next mounted with a displacement of one wave of the previous slate strip. Similarly, the laying of the 1st row is completed.

• The upper sheets are also mounted with the bottom of the lower row by about 10-15 cm.
• During the works, the horizontal and verticality of sheets is observed. Otherwise, there will be a skew after the subsequent material. Pruning and fitting slate is carried out in advance on Earth. This will significantly simplify the raising sheets on the roof and their installation.
• Such a method has one disadvantage - a mix of 4-sheets is formed, through which the melting and rainwater penetrate. You can avoid such consequences if on all extreme sheets to cut the angle diagonally, "looking" inside. In subsequent rows, the sheets are cut off two opposite angle.

Missor

• This method is advisable to apply on wide slopes of small length. To do this, it is better to use slate with 8 waves, since its use will reduce waste and respectively costs.
• A certain number of sheets must be cut in half (in length). Halves are stacked alternately with whole stripes. For example, if the first row began with a fragmentary element, a solid sheet is mounted above it. The third is again from the solesterh.

Calculation of material

A properly calculated amount of asbestos-cement sheets will save time and, undoubtedly, nerves, since it is not necessary to throw roofing work and breaking the head to go to the construction market behind the only sheet.

Calculation is performed as follows:

• the number of sheets per 1 row \u003d the length of the roof is divided into the width of the sheet, the resulting result is plusing spare 10%;
• the number of rows \u003d distance from the roof crest to the eaves, including the Svet, divided by the length of the sheet, plus 13%;
• the total number of slate \u003d the number of rows is multiplied by the number of strips for the 1st row.

If the roof is batch and from the front side forms an equifiable triangle, the result is increased by 2 times. If the roof has an asymmetrical shape, then each element is calculated separately. When calculating, all fractional results are rounded into the biggest.

This looks like this:

• suppose that the skate has the following dimensions - 6,000x3 100 mm (the calculation is performed for asbestos-cement sheets made according to GOST 1 750x1 130x5.8 mm);
• so, one-piece sheets for 1 row will be needed - 6,000/1 130 \u003d 5 pieces, the supply is added to the adoption of 10% - 0.5. Total is 6 sheets;
• next is the number of rows: 3 100/1 750 + 0.2 (13%) \u003d 2 sheets, respectively, 2 rows;
• the total amount of material - (6 + 2) ˣ2 \u003d 16 sheets.

As for the flat sheets, the principle of installation does not differ from the traditional slate. The only difference is the shaft step, here it should not exceed 40-50 cm. You can create a solid crate, in this case the strength characteristics increase, and the price of work increases.

As can be seen, new technologies allow you to perform the arrangement of the roofs of various purposes affordable at cost and with good decorative species material. After all, the unpredent, gray and dull color remained in the distant past. Asbestos-cement sheets for the whole century were able to prove their excellent operational properties, unlike newly thoroughly studied and not tested by the time of modern roofing coatings.

What makes asbestos-cement sheets produce and in which field they are used

Online store "Alfa-Tsem" offers to buy asbestos-cement sheets at an attractive price with delivery in Moscow and regions. You will find in the catalog big choice Different sheets that differ in size and thickness.

Asbestos-cement sheets are flat products from asbestoscent, they are 2 species: pressed and unfastened. In the process of choice suitable material You will most likely come across 2 other fairly common names of this material:

1. Chryryotyl cement sheets - the technical name that is aimed at GOST.
2. Flat slate - the name that consumers use most often.

In the range sheets with a thickness of 6 to 40 mm, they are manufactured according to GOST 18124-95.

What makes asbestos-cement sheets make?

The material for the manufacture of asbestos-cement sheets is a mixture of chrysotile asbestos and portland cement. Ready asbestos-cement products are distinguished by outstanding operational characteristics. Unfolded and pressed sheets do not differ in appearance, but have various density and strength. Pressed sheets withstand a greater load than unfastened.

• considerable strength, sheets easily withstand the load up to 60-70 kg;
• low thermal conductivity, so that the surface does not heat up from sunlight;
• long service life, not less than 30-40 years;
• resistance to exposure high temperatures, fire, sheets do not burn and do not melt;
• the sheets of podliaments are processed by a mechanical tool, so that they are easy to give the desired size and shape;
• unlike sheet metal, do not affect corrosion;
• feature excellent electrical insulation properties;
• with mechanical and shock exposure do not produce noise;
• sustainable alkali, other aggressive chemicals.

This material, extremely popular in various fields of construction, is also distinguished by an affordable, low price and a simple editing procedure.

Scope of application asbestos-cement sheets

Flat asbestos-cement sheets were widely used in a variety of sectors of construction. It is most often made of roofs, since on the operational characteristics these sheets are superior to other roofing materials. Approximately 80% of the percent of cases today for the roofing device uses asbestoscertic sheets.

However, this unique building material is also used in the facing of buildings, with low-rise construction. A simple installation procedure made asbestos-cement sheets perfect material for the construction of building structures of various kinds.

On the site http://cementm500.su/ You can buy chrysotile sheets for:

• production of wall panels;
• manufacturing plates of coatings;
• construction of plumbing cabins;
• construction of partitions;
• suspended ceilings;
• construction of transport galleries;
• erecting the fencing of balconies, loggias.

The cost of flat asbestos-cement sheets depends on the selected type, size and thickness of the product. We draw your attention that the larger the number of sheets you order, the more advantage of the price you can count on. Cooperate with legal and individualsoffered comfortable methods Payment.

To get a professional advice or make an order, contact the challenges on the website. You can pick up goods yourself yourself, or using our cargo transport.

Carrying out the arrangement of roofs, builders as a coating apply various building materials. Wavy lists of wavy and flat shape made of asbate cement are widely used. However, not only for the construction of the roof is the asbetic sheet. Specifications allow you to use sheet material for various purposes. Due to the increased density and strength, asbatement is used to erect protective structures and mounting formwork. Asbic cement sheets have an increased service life and are resistant to natural impacts.

Composition and varieties of asbated sheet materials

One of the most common building materials used in the performance of roofing works is an asbetic sheet. The material is characterized by a complex of properties, the main of which is the strength of the sheet, durability, as well as resistance to external factors. The roof of the asbetic building material is attached to the crate, installation does not require special training. Asbic cement sheets are known as slate.

The following components are used to make sheet asbo cement:

• asbestos fibers that increase the strength properties of sheets. Fibeid asbestos used as reinforcing material;
• portland cement used as a binder. A cement composition with marking M400 and above is used;
• quartz sand. The fine sand is added to the composition as a filler to enhance performance.

When performing roofing works, one of the most common building materials-asbetic sheet

The concentration of asbestos fibers does not exceed 14%, and the share of cement reaches 80%. Sand is added according to the recipe. To give sheets necessary color Gamma. Production technology allows introduction to a working mixture of special dyes or pigment additives.

According to the requirements of the current standard, the following types of slate slate are produced:

1. Flat asbestos-cement sheets. The technology of manufacturing a flat asbo cement provides for the possibility of output by pressing, as well as without force. Visually to distinguish the sheet obtained by pressing, and unfollowing material. Varieties are distinguished by operational characteristics - pressed sheets in terms of strength and density are superior to unfolded slate. Dimensions flat slate Standardized.
2. Sheet asbement with a wavy surface. Traditionally applied to roofing events. From the wavy sheets, roofs of residential and production buildings, build-up buildings. The material is also in demand for the arrangement of fender structures. Sheets are distinguished by overall dimensions and amounts of waves. For the roof arrangement, six, seven-and-walled slate shears with various dimensions are used.

The overall dimensions of asbestos sheets of a flat type are standardized and depending on the execution form:

• length from 250 to 360 cm;
• width from 120 to 150 cm;
• thickness in the range of 0.6-1.0 cm.

Sheet asbement is used for roofing events

Wave slate dimensions are also regulated by regulatory documentation:

• length for all sizes is the same and is 175 cm;
• the width is 98 and 113 cm;
• thickness varies depending on the profile shape from 5.8 to 7.5 mm;
• the height of the wave is 40-54 mm.

The standard allows the production of sheet asbestos with dimensions that differ from those indicated in the regulatory documentation.

The color of the building material is also different. Most often there are sheets of gray, in the manufacture of which the pigment additive is not added. With the help of the dye, the material is attached brown, green, red and other types of shades. The introduction of coloring substances increases the decorativeness of the building materials, and also positively affects the duration of operation.

Asbicated sheet - specifications

Planning to use an asbocate sheet, specifications should be carefully learned.

Main Production Indicators:

• the ability to perceive bending loads. The strength indicator varies from 18 MPa for a wave material to 23 MPa for a flat asbate age;
• specific gravity. The density of sheets differs depending on their variety and is for sheets with a wave-like surface 1.6 g / cm³, and for flat material 1.8 g / cm³;
• shock viscosity coefficient. Asbatement, obtained by pressing, has the highest indicator equal to 2.5 kJ / m². Unpressed material has a reduced value of a shock viscosity equal to 2.0 kJ / m²;
• the ability to maintain integrity under the influence of temperature differences. The extruded material is able to perceive at least 50 deep freezing cycles with further thawing. For other varieties of sheet cement, the indicator exceeds 25 cycles.

The residual strength indicator for all types of sheets is at least 90 percent.

Before using an asbetic sheet, you should carefully study the technical specifications.

Asbicated sheet - the advantages and disadvantages of this building material

Like any building material, leaf asbo cement has a number of advantages and at the same time has certain disadvantages.

Initially, consider the main advantages of asbestos-cement sheets, which include:

• strength. The solid and tight sheet of asbacker retains the integrity, perceiving the mass of man;
• resistance to elevated temperature. Material retains operational properties and practically does not heat under the influence of sunlight;
• long use. The durability of the material is evidenced by roofs of buildings covered with slate more than half a century ago;
• fire safety. Asbic cement material is not flammable when exposed to open fire and has refractory properties;
• easy machining. No need to use special tools and equipment for cutting sheets in size;
• moisture resistance. Asbic cement slate reliably blocks the path with precipitation and maintains performance when operating in conditions high humidity;
• anticorrosive properties. Asbacement is not subject to corrosion and surpasses in this indicator roofing materials made of metal;
• electrical insulation characteristics. The material is a good insulator, does not conduct an electric current, ensuring safety when cutting the wires;
• noise insulating properties. Asbic cement material absorbs sounds from hail and other precipitation onto a slate roof;
• affordable price. Compared to other types of roofing materials, slate is significantly cheaper, which allows you to save;
• resistance to the effects of aggressive liquids. The material is resistant to an alkaline environment and are not destroyed by contact with acid;
• maintainability. In case of damage to asbotic elements, the roof is easy to carry out repair activities by replacing individual sheets.

Asbicated material durable

Simultaneously with advantages, slate also has the weaknesses:

• in conditions of high humidity, the surface is gradually covered with moss;
• to raise massive sheets, you need to make significant efforts;
• heavy sheets have increased pressure on roofing;
• the fragile material needs careful handling for transportation and installation.

To increase the moisture resistance of the material and preventing the development of moss, special primers are used. To ensure the reliability of the roofing design, the beams of an enlarged cross section are used, which are enhanced in places of compound with metal lining.

Scope of pressing and unfolded asbetic material

Due to the complex of serious advantages, leaf asbacement is widely used when performing roofing works, as well as to solve other tasks. Let us dwell in more detail on the scope of use of a sheet building material.

Regardless of the method of making asbotic sheets and their species, the material is used to solve a wide range of tasks:

• roof structures in residential and public buildings;
• roof arrangement at enterprises and agricultural facilities;
• erection of fender structures in the industrial sphere;
• protective and decorative luggage of loggias and balconies;
• external cladding of walls of various buildings;
• making partitions in sanitation premises;
• forming a screed on dry technology;
• manufacture of external sides of the sandwich panels;
• structures of the elements of the shield formwork;
• the formation of separation partitions indoors.

Despite the expanded area of \u200b\u200buse of the material, the traditional application of asbotic slate - blood creation. For arrangement, sheets with a wave-like profile are more often used. They look better on the roofs of houses and provide more efficient precipitation compared to a flat asbette.

Let's sum up

The construction industry is popular as a asbotic sheet, the technical characteristics of which allow the material to confidently compete with other varieties of roofing materials. In specialized stores, leaf asbocement is presented in an extended nomenclature, which facilitates the selection of the required asbent's assortment to solve specific tasks. By purchasing sheets, decide on their sizes and, if necessary, consult with professional builders.

Asbestos-cement sheet or slate due to durability, durability and prices remain competitive even against the background of modern roofing materials. If you know the features different species Slate and rules for their laying, then the material can be seized or covered with a roof without excessive costs.

Composition and types of asbestos-cement sheets

The basis of this material is portland cement M300-500 brands, mixed with water. With molding inside each sheet, fibers asbestos evenly distribute. Their share in the building material is 18 percent. Mineral component gives the canvas strength and resistance to mechanical damage.

Asbestos-cement sheet is made in a wavy and flat design.

The first option is divided by the number of waves: seven or eight. Rarely produce both pasty, solevoly sheets, but they are used only for industrial needs.

A flat asbestos-cement sheet to reduce cost is sometimes not subjected to the press. In this case, the service life of the material is reduced by little strength and porosity. And use unfollowing sheets is possible only for small hozpostroops or cladding.

Color slate gives aesthetic appearance of the facade of the house

The usual shade of asbestos-cement canvases is gray. But some manufacturers offer color slate. Staining bright products occurs when molding using the addition of coloring pigments.

Main characteristics and GOST

The dimension range depends on the type of slate. Standard dimensions:

• eightwall sheet - 1750 x 1130 mm;
• seven-wave - 1750 x 980 mm;
• flat - from 1750 x 970 to 3000 x 1500 mm.

The thickness of the wavy asbestos-cement sheet is caused by the height of the crest and wavelength. These indicators are typical: or 40/150 mm, or 54/200 mm. The thickness of the first type is 5.8 mm, the second is 6-7.5 mm. There are also reinforced panels with a thickness of 8 mm, they label Wu and use more often in industry. The weight of the wave profile varies from 23.2 to 35 kg.

Flat elements with a thickness of 6 mm weigh 21.2 kg, 8 mm - 30.5 kg, 10 mm - 40.1 kg.

The density of pressed flat wastes - 23 MPa with a shock viscosity - 2.5 kJ / m². At unfinished these indicators are 18 MPa and 2 kJ / m². In wavy sheets - 16 MPa and 1.5 kJ / m².

The average life of the slate is 25 years old.

The extruded slate serves two times longer, since the porosity of the material is less and the canvas better with the moisture.

The numbers are designed based on the GOST. Wave slate is created taking into account the State Standard 30340-95.

Wavy asbestos-cement leaf has increased strength

Flat elements are manufactured according to GOST 18124-95.

Flat slate is used for foundation

Pros and cons

Traditional asbestos-cement sheets have many advantages to enjoy the way in the building materials market. These include:

• hardness;
• durability;
• resistance to the influence of negative natural factors;
• nonseasing;
• ease of mechanical processing;
• immunity to corrosion;
• alkalis resistance;
• electrical insulating qualities;
• sound insulation;
• simplicity in montage;
• budget value.

Asbestos cement elements are well holding a human weight, which makes it possible to move along the sheets laid on the roof and facilitates laying. But for security it is better to use special ladders or walkways.

Before buying slate, it is important to weigh the pros and cons building material. Among the shortcomings of roofers allocate:

• Favorable conditions for growing moss and lichen in the absence of pretreatment.
• The weight of asbestos-cement sheet, not providing for installation alone.
• Formation of cracks under the influence of open fire.

Asbestos dust causes harm to human health only with prolonged exposure. Therefore, during the performance of work, it is important to wear a respirator to avoid irritation. respiratory tract. When cutting cuts, it is worth covering a special impregnation or paint.

The use of slate

The scope depends on the type and density of the sheet. Wavy panels cover the roofs, use to create fences and housekeeping. Flat pressed panels are suitable for the construction of partitions, lining houses and slabs of overlaps. Unfolded slate stones interior walls Loggia, make flooring in cells for poultry, manufactures plumbing cabins.

Asbestos cement panels are most often used as facing and roofing material for walls.

Metal frame may have a complex design

When erecting the facade of the building is required metal carcasswhere asbestos-cement elements will be fixed. The same technology is used in the construction of partitions and fences.

Video

Video Instructions, how to sew a house flat slate:

Features of roofing

Slate installation requires technological subtleties

During the roofing works, it is easier to equip the roof with skates no more than 35 degrees. But slate is also used with a complex upper building configuration. Technology involves seven major stages:

1. Buying material and fasteners. From hardware, nails with a galvanized hat and a washer made of rubber fit well.
2. Check slate on damage and chip. The goods with marriage should not be put on the roof.
3. Marking and drilling holes for fasteners. The aperture should be wider than the "legs" of hardware so that slate does not crack when twisting or compression when the temperature drops. Fastening the elements is carried out at the highest point of the wave.
4. Setting rafters. Carrier system scope roof It must be durable, as asbestos sheets weigh a lot. For this purpose, boards are 100x150 mm with a humidity indicator not more than 15 percent.
5. Creating a doom. Flooring makes out softwood. It is suitable for a sequence of 60x60 mm. The design is located in such a way that each asbestos cement panel has a support for two bands. The less the angle of inclination of the roof, the more densely creates a doom. The distance from the slice of a slate sheet to the nearest lattice bar must be at least 15 cm.
6. Creating an additional loose contour near chimneys and stoves of pairing skates.
7. Installation of the waterproofing layer.
8. Fastening slate sheets. It is started to cover the roof from the bottom left corner, slowly moving on the eaves and climbing to the skate part. The starting row is made on the guide cord to ensure the smoothness of the sweep and styling.

The coating of the roof asbestos-cement sheets involves the creation of overlaps horizontally and vertical. Simplifies the task of docking the displacement of each of the rows into four waves. It turns out that the material will be laid out in a checker order.

Use for formwork and gardening facilities

Pouring must pass by small portions

Sometimes when appropried under specifications In the process of working slate need to be cut. This manipulation is performed by a grinder with a diamond disk. Rest of material suitable sizes You can use for formwork from asbestos-cement sheets when creating small bases. Fragments are well suited as filler for the foundation.

Asbestos-cement elements are used for garden or garden design. So, pressed flat sheets can be coated tracks on the country's dacha. Plates are put on the gravel and sand pillow.

Asbestos cement sheets will protect plants from pests

Using slate trimming and for fence of flower or trees. Cracked vertically sheets form a kind of tank where the soil is falling asleep. Removal from the surface of the earth helps prevent the frosting of plantations in spring or autumn. You can create a bed of any configuration, even in the form of terraces.

Processing asbestos-cement sheets

The sprayer will significantly reduce the time of work.

• allows the sheets longer do not collapse;
• reduces the release of asbestos particles into the atmosphere;
• reduces moisture absorption and increases frost-resistant qualities;
• prevents the growth of lichens and mosses.

Slate is covered with moisture-resistant compositions that prevent water absorption, mechanical damage, create a wonderful drainage and do not delay dust. Processing passes as follows:

1. the material is cleared of contamination;
2. checked on chips and cracks;
3. processed by antiseptic composition with a brush or sprayer;
4. after drying the surface, hydrophobization is carried out.

To enhance the waterproof, special colorless impregnations are used, which do not allow sheets to absorb moisture. There is similar protection for almost 15 years, after which the procedure is repeated. Processing helps to save appearance slate.

Print bright shades, without resorting to hydrophobization, can be painted. To make it better paint material based on acrylic.

Before applying paints, slate should be primed for better clutch paintwork With the surface of the sheet. The first layer of the kolker is applied after complete drying of the primer. The second slate coating is carried out after drying the starting layer. Thanks to this scheme, the surface of the sheets will not have divorces, color differences and unpainted places.

The polymer coating is considered a good substitute for lacquer paint and serves over 15 years.

People who are familiar with roofing work, can put slate on the roof or bind the wall of high quality and in a short time. When complying with newcomers will also be cope with the task.

The construction market is constantly expanding the range of roofing material, appear both new options and are modified old. But there is one who remains unchanged for many years - slate, he is asbestos-cement sheet.

The most common option is the wavy slate, but also flat sheets of asbestos cement should not be discounted. This article will be discussed precisely about a flat slate, we will deal with its advantages, characteristics, scope, etc.

Types of flat slate

Flat asbestos-cement sheets are divided into two groups:

1. pressed;
2. without presses.

Pressed are more popular in private house-building. It is produced by pressing pressure on it. In this way, improved density characteristics are obtained - up to 1.8 g / cm³, and shock viscosity - up to 2.5 kJ / m².

The porosity of the material has a low level, so the service life is more long. Also, it withstands a greater number of frost cycles and thawing - up to 50, after which the sheet strength decreases by 10%.

Slate produced without presses is inferior to the previous one in many parameters. It can only withstand 25 frost and thawing cycles, its density is 1.6 g / cm³, and resistance to mechanical effects is 2 kJ / m². Also weaker indicators and flexural strengths are 18 MPa, against 23 MPa in pressed.

Video: asbestos (asbetic) sheet / flat slate

Scope of application

The main area where flat asbestos-cement sheets are used:

• roof;
• test facade at home;
• production of fences.

In fact, the scope of use is much wider. As an option, flat slate sheets can be used to create a flower or high beds on the garden plot. Flat sheets can be seen balcony, hosne. Building, etc.

Also, the trimming of the flat slate is used as a formwork for the foundation of a small structure. Large density sheets and thicknesses are suitable for creating a garden path.

Roofing of flat slate

Asbestos-cement sheet is used as a roofing material with a thickness of 8 - 10 mm. You can use and thicker products, but then you have to strengthen slinge systemSince it will be affected by a large load.

For rafters take a board with a cross section of 10 × 15 cm, they are strong enough and able to withstand slate weight. The distance between them should not exceed 1 m. Then, paro barrier is placed on the rafter and the lamp is mounted. It is better to use a 5 × 5 × 5 cm.

Tip! Pre-process all the wooden parts by an antiseptic and fire fighting facilities (antipirens).

Flat slate is nourished to the crate, it is done in a checker. Each next row overlaps the previous one. Fixation is performed not as a wave nail, but are used special galvanized or stainless steel roofing screws.

Before screwing the screws, a hole is drilled in a leaf at a distance of at least 7 cm from the edge of the sheet. Under the self-tapping screws, the rubber washer is placed, which closes the hole.

After installation to protect Slate and extend the service life, it is desirable to further paint with special paint. Printing is performed before painting.

Characteristics of asbestos-cement sheets

Below is a table with technical characteristics flat asbestosic sheets.

Indicators			Value
			Structural		Small-sized
			Pressed	Unpressed	Pressed	Unpressed
Density, not less than specified, g / cm³			1,8	1,6	1,75; 1,8	1,7
Bending Strength MPA (kgf / cm²)			23 (230)	18 (180)	22 (220);	20 (200)
Shock viscosity, KJ / m²			2,5	2	2,2	2
Frost resistance		cycles freezing and thawing	50	25	50	25
		Residual strength,%	90	90	90	90
Size, mm.	length		3000; 3600		1200
	width		1200; 1500		1500
	thickness		8; 10		6; 7

Advantages and disadvantages

Flat slate has a number of indisputable advantages. It belongs to his advantages:

• solid - withstands heavy loads;
• resistant to high temperatures;
• durable;
• ease of processing;
• resistant to chemical and biological impacts;

Conclusion

Of course, asbestos-cement sheets are not quite attractive material, from the point of view of designers. But they can be rooted or the facade of any economic buildings. At the same time, the cost of material will be not large. That is why the demand of the flat slate is still at the height.

Watch the video: what to see the house cheap. Practice to use flat slate.