Vermont Semi-Weathering Gray

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.

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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

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