Slate is one of the most popular roofing materials. Many roofs of structures and buildings are covered with it. Of course, there are many materials that can replace slate. However, this roofing has long occupied a certain niche in the market. At the same time, it is possible to improve the appearance of the material with the help of special paint. This processing method has its advantages. How and how to paint slate?
Is it necessary to paint
Slate painting is a procedure that allows not only to improve the appearance of the roof, but also to increase some properties of the material. Today not only profiled sheets are made of asbestos, but also flat plates and panels. What gives a painting of slate? To process such a material, as a rule, acrylic paint is used. This coating is designed specifically for products from asbestos. At the same time, not only the decorative qualities of the roofing material are increased, but also its service life is significantly increased. After all, acrylic paint is able to withstand weathering. In addition, the coating allows you to create an additional protective layer.
How does paint affect the material
Before painting the slate, it is worth clarifying what properties of the material the paint affects:
- Protects asbestos roofs from premature destruction.
- Reduces the degree of water absorption.
- Reduces the amount of harmful substances released by asbestos.
- It increases the operational qualities of the roof, increasing its service life by about half.
- Does not allow material to grow with lichens and moss.
It should be noted that in case of violation of the integrity of the paint layer, it is necessary to immediately restore it. Do not wait for the next slate processing. After all, such a roofing material is itself porous. Under the influence of precipitation, it quickly becomes polluted. As a result, the roof of the building may take on an untidy appearance.
Precautionary measures
Processing, as well as painting the slate should be carried out using additional means of protection. To carry out work, it is worth using a respirator for respiratory protection, gloves and glasses.
All compounds used for roof treatment contain substances that can prevent the growth of fungus. Some chemical components of such products are toxic and may be harmful to humans.
Roof preparation
Before painting the slate, it is necessary to prepare the surface. To do this, a series of procedures should be carried out to increase the resistance of the material to external factors. To protect the slate from biological destruction, it is necessary to treat the roof with an antiseptic. You can carry out a similar procedure yourself using a special spray or brush.
It is worth considering that every year the material becomes more porous due to thawing in the spring and freezing in the winter. Because of this, the number of cracks in the sheet slate is gradually increasing. In a humid environment, bacteria that can destroy asbestos cement begin to multiply in them.
Painting the slate roof is possible after processing the material with a water repellent. It is best to use such products for roofing, which is not more than one year old.
Ground and paint
Of particular importance is the primer for slate. For the treatment of asbestos cement, it is recommended to use compounds that are designed for deep penetration. In this case, the problem is the porosity of the material. Such a primer allows you to strengthen asbestos cement, as well as provide good adhesion with a paint coating. If you process the roofing material with such a composition, then you can save. Paints to cover the slate roof will require much less. In addition, the material will lay down in a more even layer.
It is recommended to apply a primer using a construction sprayer. The consumption of funds is from 100 to 150 grams per sheet of roofing material. Processing of asbestos cement should be carried out at an air temperature of 5 to 30 degrees above zero. Before painting the slate, it is worth the wait until the primer dries. It takes at least 12 hours.
Shikril paint
One of the most popular paints for asbestos cement is considered to be Shikril paint. For its preparation only organic solvents are used. This paint is ideal not only for painting sheet slate, but also for cement-sand tiles, and for concrete socles. It can handle almost all surfaces that require alkali-resistant coatings. Using this tool, you can restore damaged areas of a previously painted slate roof. The basic line consists of several basic shades:
- RAL 7040 - white or gray.
- RAL 3011 - Burgundy.
- RAL 3009 - brown.
- RAL 6032 - green.
If necessary, you can order paint in other colors.
Properties of Shikril paint
Such paint can be used for painting both new and old roofing. Such a composition has many properties, among which are:
- elasticity when exposed to sufficiently low temperatures;
- high rate of light fastness and hiding power;
- hydrophobic, in a different way, water-repellent properties;
- ease of use;
- availability.
You can buy such paint in almost any hardware store.
How to use Shikril paint
Before applying a coating on asbestos cement, it is necessary to clean the material from dust, dirt and paint residues previously applied to slate. After this, the surface must be primed. To do this, you can use a spray gun, roller or brush. Asbestos cement should be primed in one or two layers. Reapply the composition only after the previous coating has completely dried. All work is recommended to be carried out at an air temperature above 15 degrees. Only dry material can be processed.
Paint should be mixed. If necessary, you can add a solvent to it. Uyat alcohol or butyl acetate is ideal. Apply the paintwork to the roof from top to bottom, gradually dropping. The periodic composition should be mixed.
Typically, the paint is applied in several layers. This can be done using a spray gun, roller or brush.
The composition of "Kilpi"
Kilpi is Finnish paint intended for roofing. The manufacturer of this composition is the Tikkurila company. Paint can be used for painting fibrous bituminous slabs, roofing felt, slate, tile and other roofing materials. This composition has a unique elasticity even at very low temperatures. However, such a tool is spent uneconomically. A liter of Finnish paint is enough to cover only two square meters.
Dachbeschichtung paint
This coating is made by the German company Dufa. The paint is intended for the processing of roofing materials. It should be noted that the composition is distinguished by semi-matte shades. Suitable paint is not only for complete painting of surfaces, but also for partial repair of the paint layer. The composition can be used to process not only asbestos cement, but also concrete and clay tiles.
It is worth noting that such a coating allows water vapor to pass through well. At the same time, the roofing material remains under reliable protection from the negative effects of the environment and precipitation. The paint is characterized by a high adhesion rate. If the surface preparation was performed professionally, then the coating can ideally be preserved for more than one year. One liter of German paint is enough to paint seven square meters of asbestos cement.
Polifarb Akrofarb Paint
How to paint the slate to give the building a beautiful look? Today, specialized stores sell coatings that not only allow you to change the color of asbestos cement, but also improve its quality. These structures include paint from the Polish manufacturer Debiza - Polifarb Akrofarb. As a basis in the manufacture of such a composition, an acrylic dispersion is used. Such paint can be used to process not only the roofing material, but also the surfaces of the facade lined with clay-cement panels.
After application, the composition dries out within three hours. One liter of such paint is enough to paint from 5 to 7 square meters of coverage.
Acrylic paint-slate paint
The paint and varnish composition "Acrylacma-slate" is made by the Ukrainian company "Lakma". The coating is acrylic and moisture resistant. The composition is available in just a few versions: brown and red-brown. After application, the paint layer becomes matte and uniform. There is a feeling that the roof is covered with a film. The paint dries in one hour. One liter of this composition is enough to paint at least 6 square meters of asbestos cement.
Paint and varnish composition "Universal"
This is a water dispersion paint from a Slovak manufacturer. This coating is intended for the processing of asbestos cement. Universal paint is produced according to Helios technology. The plant on which the coating is made is located in Russia. Such paint is characterized by a high indicator of light and weather resistance, as well as a high degree of hiding power. Such a coating is used for industrial and household painting of asbestos cement. The composition can be applied by machine or manually.
As for the color scheme, today it is possible to purchase Universal wagon paint in green, black, oxide red, gray, brown or white. After application, the coating dries out within one hour of the Universal wagon paint enough to evenly cover five square meters of slate.
In conclusion
In addition to the brands listed above, there are other brands on the paint market. A wide range allows you to purchase exactly the coating that is ideal for processing asbestos cement. Paint for slate allows you to give the building a more attractive look.