Vermont Strata Gray slate is a medium gray slate with black stripes. This medium to heavy-textured slate usually shows some buff and brown weathering. The random angles of the strata lines combined with the semi-weathering qualities provide heavy contrast through 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