Things to look for when choosing slate
By Sheena Owen Jan 14th, 2015
1. RELIABLE slate suppler
2. CAPABLE roofer
3. Unfading or weathering slate
4. Oxidizable iron pyrite
5. Grading for thickness
6. Over / Under-nailing
7. Joint spacing
8. Headlap
9. Slates cut less than 5 inches wide
10.