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Purple Roofing

Purple Roofing Slate was the first Vermont roofing slate to be produced commercially with operations starting in 1839. Its deep, rich plum color holds a special appeal and it was frequently used on church roofs during the past two centuries. Because of its superior performance, rich color and natural texture, architects repeatedly specify this natural Vermont slate for institutional, commercial and residential roofing projects. Purple Roofing Slate is appropriate for both traditional and contemporary architecture. The purple color will vary in shade and may contain green markings. Purple Roofing Slate can “weather”, meaning it will take on brownish tones over time when used outside. It is available in many sizes and thicknesses. It is a relatively rare slate.


Stone Type



A rich plum color containing occasional green markings.

Weathering Characteristics

“Semi-weathering”, meaning that some pieces change color when used outside and others do not. Those that do take on brownish tones. (Purple Roofing Slate’s weathering characteristic is an aesthetic consideration and does not adversely affect its performance or durability).




Exceptionally strong and hard, durable, dense, low absorption rate, resistant to freeze-thaw cycles. Stain- and fire-resistant. No detrimental effects on the environment.


Minimal. Broken shingles can be easily replaced with the use of a slate ripper.


Upon request

ASTM Results

Upon request

  • Slate Roofing