technical data
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Absorption 12.5%
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Compression strength: 3,400 psi in accordance with ASTM C39
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Thickness: 1 to 3 inches
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Splitting Tensile Strength: 305 psi
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Fire Rating: Shows zero flame spread, zero fuel contributed, and zero smoke development
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Installed Weight: 9 to 12 lbs./sq. ft. (approx.)
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R Value: 0.75 to 1
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Color Retention: Permanent mineral oxide colors are used and will have no unsightly color change after years of weathering