Roofing GRANITOID Slate surface.
Slate surface, GRANITOID, crushed Slate coating. A roofing for every type of building. It can also be used for siding or paneling. The slate surface which is in colors is a pleasing effect, and a hard, durable surface of exceptional wearing quality. The slate surface is spark proof, and a protection against fire. GRANITOID slate surface roofing is made of high grade long fiber rag felt. Which takes a full saturant of refined asphalt. This felt is coated with a heavy tough asphalt, Into which is embedded crushed Slate of natural attractive colors on upper or exposed side. Along the upper edge of each roll is a smooth strip 2 inches wide to permit making a lap that will cement watertight.