The asbestos -cement slate has a rough and rather porous surface. Therefore, certain problems arise during operation. In the openings of the rough surface, the roofs are often collected by various kinds of pollution, organic and inorganic. Dust and small plant residues accumulate there. Mosses and lichens usually develop in such an environment.
The life of these organisms produces to the gradual destruction of roofing material. To avoid the premature destruction of slate and biological corrosion, as well as extend the rows of use of the roof, slate sheets are stained. To paint the slate roof, you need to decide on the paint. This requires a special acrylic, which is designed to paint slate surfaces. With its help, moisture absorption can be reduced, since when applying a ball of paint, a peculiar strong polymer film forms. She carefully adjacent to the material, closing his pores and, thus, reducing moisture absorption. The coloring of the slate allows you to extend its lines at least 1.5 times. So, the painted slate roof needs to be repaired much less than unpainted. Now you can buy painted slate sheets.
