Vermont Semi-Weathering Gray slate is a traditional slate gray color and ranges from having a clear appearance to small black markings. This slate may show some varying degrees of weathering from bronze to buff. It is a smooth to medium texture slate that is highly desirable when earth tone colors are desired on the roof.
|Value||ASTM Test Method||ASTM Grade|
|Modulus of Rupture||611 lbs. at 0.253 in||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