
18 Facts about Natural Slate Roofing
By Sheena Owen Jan 21st, 2019
[caption id="attachment_3179" align="alignleft" width="300"] Glendyne quarry, the producers of North Country Unfading Black natural roofing slate.[/caption]
1) Natural roofing slate was formed 400 million to 550 million years ago and is a microcrystalline fine-grained metamorphic rock
2) Slate has been used for roofing for over one thousand years!