Greenstone Vermont slate adorns roof of national historic landmark

The Yaddo, Queen Anne Revival mansion and historic landmark in upstate New York, received a natural slate roof during its recent restoration. The slate was installed in a standard (uniform) style where the slate tiles are of equal length and width and are set in evenly spaced horizontal courses. Roofing contractors took care during installation to alternate and align the vertical joints for a true, traditional aesthetic. Slate was also installed as cladding on the dormers. Copper accents were used for the ridges, valleys and gutters, while brass was selected for the snow guards.

The Greenstone Slate Company supplied 140 squares of 18” x 10” Vermont Semi-weathering gray-green slate in standard grade rough-texture slate (ranging in thickness from 1/4″ to 3/8″) for the project. Its rough texture gives the appearance of heavy grade slate, which is thicker and heavier. This slate grade is ideal for restoration projects such as the Yaddo mansion, as well as for churches, universities and other institutional applications, particularly when slate weight needs to be under 1000 lbs per square.

The Yaddo is an artist retreat in Saratoga Springs, NY, whose mission is “to nurture the creative process by providing an opportunity for artists to work without interruption in a supportive environment.” Yaddo’s 400-acre estate was designated a National Historic Landmark in 2013.

Contractor: D.J. Wooliver & Sons, Inc.
Slate Quarrier / Manufacturer: Greenstone Slate Co.
Project Location: Saratoga Springs NY


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