Slate is one of the most popular roofing materials today. It refers to economy class coatings. If the usual slate is suitable for the construction of the canopy, then painted material should be laid on the roof of a private house. Therefore, quite often, consumers are wondering which slate paint is best.
Paint selection
Many consumers believe that choosing an imported product for coloring slate, they will get an excellent result. But this assumption may be erroneous. Therefore, the issue should be taken seriously. If you decide to purchase a foreign product, then you should pay attention to Dachbeschichtung. This paint is made in Germany and represents the most expensive product among import offers.
By technical indicators, the paint is quite attractive: it is strong, has high adhesive properties and durability. However, the application of such a mixture can only be carried out on natural slate or tile. Another slate paint is Kilpi. It is made in Finland and contains acrylic. This indicates that the application can be carried out on almost any roofing material, for example:
- corrugated board;
- slate;
- metal tile.
At a price this product is slightly more attractive compared to the German counterpart.
Alternative solutions
If you want to improve the slate roof, you should also pay attention to the Polifarb / Akrofarb paint, which is a Polish product. These acrylic compositions are based on dispersion substances and are good because they dry out in the shortest possible time. As a result, it is possible to achieve color saturation and brightness. A joint product of manufacturers from Finland and Sweden is Eter Akva. It is a water-soluble acrylate based paint. The mixture is resistant to aggressive alkaline environments and can be used for coloring not only slate, but also concrete.
Paints for slate from manufacturers of the countries of the former CIS
If you will be painting the slate, then you can choose products manufactured under the Polyfan brand. This Russian paint is used for application on slate, brick and concrete. The main advantages are:
- wear resistance;
- water resistance;
- color fastness;
- durability.
Ukrainian paint “Acrylama-Slate” is used exclusively for slate and is a viscous acrylic liquid on a water-dispersion basis. The basis for the Belgorod paint “Unisal” are acrylic elements on a water-dispersion basis. The desired color can be achieved by adding coloring pigments.
The coating has high resistance to ultraviolet and precipitation. The Butanit paint in Moscow contains polymeric substances, to which mineral-silicon ingredients are added during the production process. The main feature of the composition is frost resistance.
How to paint a slate roof
The slate must be painted using a special technology. If the roof is only planned to be covered, then the material can be painted on the ground, and then, after waiting for the layer to dry, lay on the crate. If the roof is already arranged, then you have to sweat. When the slate was used for several years and was never painted, its surface could become covered with a coating of fungal formations. The unpainted slate over time becomes covered with a bloom of green color, which absorbs moisture and creates a load on the roofing structure.
In order to achieve a positive result, you must remove the top layer. Use for this is better:
- a brush with a metal pile;
- car wash;
- drill;
- grinder.
Using a metal brush, you can remove fungal deposits on a wet or dry surface, everything will depend on the severity of the coating. If you decide to use an angle grinder or drill, then you need to equip one of these tools with a brush nozzle. The most universal solution is a car wash, with which you can prepare a slate roof with water for painting, the jet will be supplied under high pressure.
As soon as the roof is cleaned of plaque, it is necessary to treat its surface with an antiseptic, which will eliminate the likelihood of the formation of fungus and mold. Painting the slate involves preparing the base of the roof with a primer. Its application is carried out in the next step. This layer will improve the adhesion of materials. Using a primer, you can fill the pores, which will reduce paint consumption, in addition, the surface of the slate will be smoother.
Specialist recommendation
The most correct way to stain will be to apply paint in 2 layers. The first layer will be the basis. Work can be carried out with the following tools:
- roller;
- with a brush;
- spray gun.
Additional preparation tips
Painting slate must necessarily include the need to prepare the surface of the covering material. It is important to inspect the canvas to prevent damage. Specialists recommend paying special attention to northern slopes, because it is on them that moss colonies are most often formed, which must be disposed of. If you decide to use a manual power tool for this, it is important to be careful not to damage the slate.
Cleaning, painting slate - these are the main stages of the refinement of the described material. As soon as all microorganisms are removed, the roof surface should be checked for integrity once again. If you notice small cracks or breaks, then they must be repaired using a special mixture. You can prepare it yourself using:
- cement;
- PVA glue;
- fluffed asbestos.
The glue is pre-diluted with water. The preparation process necessarily involves the removal of debris from the roof surface. It is important to dust the painted base. This is done with an ordinary brush and water. The slate is then left to dry. Painting the slate on the roof will allow you to achieve an excellent result if you use car washers for preparation. After that, it will look like new.
Slate painting
Flat slate is painted using the same technology as wave-like. It is better to start work in cloudy cloudy weather when the air temperature rises above +15 ° C. Such conditions are most optimal for drying the applied layer. Quite often, consumers are wondering whether it is possible to apply paint at temperatures close to zero. In the instructions, you can find recommendations that the paint behaves perfectly under such conditions. However, experts do not recommend risking expensive materials. In addition, lower temperatures can increase the drying time of the applied layer. After the formation of the first layer, it is left until dry. This period may vary for different materials. The layer will reach full strength within a few days, it is important that the roof surface is not wet.
Methodology: reviews
If you decide to update the roof, it is recommended to read reviews about painting the slate. Consumers say it’s best to use a spray bottle or a wide brush to apply an antiseptic. It is important for the master to use protective equipment:
- glasses;
- gloves;
- respirator.
When choosing a primer, it is important to pay attention to formulations that contain ingredients that protect the surface from the formation of moss and mold. Applying a primer, according to customers, is best done in several layers. When painting the slate with your own hands, it is best to purchase a primer of the same manufacturer as the decorative material, which will be used at the final stage of the elevation of the roof.
It is best to start work early in the morning when the weather is not too hot. An ideal humidity level for this is a limit of 40 to 60%. This combination with a temperature of 20 ° C is quite rare, so it is recommended to follow the instructions.
It is important to pay attention to the processing of the ends, hard-to-reach areas and corners. About 60% of the total amount of paint will go to the base coat.
Conclusion
Consumers argue that in the end, an inhomogeneous layer can be obtained. In order to avoid this, the application of the second and subsequent layers should be carried out on a dry base layer. Typically, the paint consumption is greater than that specified by the manufacturer. Therefore, it is recommended to purchase material with a certain margin.