California s highest quality slate roof supplier traditional slate supplies premium natural roofing slate sourced from around the world to the west coast.
Roof slate quality.
With over 40 years of experience in slate roofing we provide expertise in selecting the right slate material for your job and work with clients from design to installation.
The roof slates of authentic roof are of high quality.
Our 16 quarries and 22 processing plants enable us to offer any kind of natural slate for roof tiles or facades making our range of slate roofing products the most complete on the market.
With the installation your total cost will be between 12 50 and 25 00 per square foot installed.
Click to enlarge any image many loose slates sliding down and often pieces of slate on the ground around the building.
See the greenstone slate 100 year warranty statement to learn more about how we stand behind the our material and manufacturing.
A greenstone slate roof can be expected to have a useful life range from 75 to more than 300 years.
Roofing slates range one in every three natural slates installed worldwide bears our brand.