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Slate Colors, Weathering, Fading…What do they all mean?

All Greenstone slate colors have been tested and meet the S1 ASTM engineering specification, (ASTM C406*), which means they exhibit all the physical characteristics of the best quality slate available. Slate Colors Descriptions of slate colors can vary from supplier...

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We’d like to feature your best slate projects in our online Slate Project Gallery

Greenstone Slate would like to feature your best slate roof or slate cladding projects in our slate project gallery at Greenstoneslate.com! Approved projects will be showcased both on the website and in our social media posts. You will also be provided the direct web...

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Project Profile: Gearan Center for the Performing Arts at Hobart and William Smith Colleges

Location: Hobart and William Smith Colleges Designer: GUND Partnership Contractor: Leo J. Roth Corporation Slate Supplier: Greenstone Slate Company Project Summary April 25, 2014, Hobart and William Smith Colleges broke ground on the Performing Arts Center, starting...

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