Roofing slate is a dense, tough durable rock material which is practically non-absorbent.
The color of slate is determined by its
and mineralogical composition. To relieve the monotony of a flat uniform color, various shades can be used to provide interesting color patterns across the roof. Exposure to weather causes all slate to change color.
Unfading slates exhibit minimal color change. Weatherizing slates exhibit a more obvious color change. The basic slate colors are black, blue-black, gray, gray-green, green, purple and red.
Slate varies in thickness from ¼” – 3/8”, 3/8” – ½”, and ½” – ¾”. Length of slate varies from 9” – 20” with random sizes and different exposures for each size.
Slate is one of the most durable types of roofing you can put on your roof. Slate will last 75 to 100 years.