Vermont Black
Vermont Black is a semi-weathering slate with a medium to heavy texture and a medium to dark gray color featuring darker, linear markings. Over time, subtle bronzing may develop in the lighter areas of the slate, creating natural variations in its appearance.
ASTM Tests
| Value | ASTM Test Method | ASTM Grade | |
|---|---|---|---|
| Modulus of Rupture | 611 lbs. at 0.253 in | C-120-06 | S1 |
| Absorption | 0.163% | C-120-06 | S1 |
| Weather Resistance | .0019 in. | C-217-94 | S1 |
All Vermont Slate Company® roofing products meet or exceed ASTM C-406 S1 Standards











