Upon exposure to the weather, all slate is changed slightly in color. The extent of this color change varies with different slate beds, being barely perceptible in certain slates. Those slates in which color change but slightly are classed as “permanent” or “unfading”. Those in which the final result is more marked and varied are known as “weathering slates”.

Weathering is the natural result of exposure to the elements and in no way affects the durability of the stone. The weathering characteristics of the various slate types vary from quarry to quarry and must be taken into consideration to maintain some control over the final appearance.

Sea Green

One of the most durable and plentiful of the Vermont slates. A pleasurable material to work for the slate craftsman – cutable and consistent. This stone is gray/green when freshly quarried and a naturally harmonious blend of greens, grays and approximately 20% buff after weathering. Produced in Vermont.

North Country
Unfading Black

A top-quality, premium-grade slate from the Northern border region of Maine and Canada. A full 1/4″ thick, and smooth in texture, this dark gray slate is very similar in quality and appearance to the legendary Unfading Black formerly quarried in Monson, Maine. Produced in Quebec, Canada.

Mottled Gray/Black

Dark gray and black, almost stripes in appearance. Can experience some slight weathering, typically in the lighter gray portions of the shingle. Produced in Vermont.

Vermont Gray

Our Vermont Gray weathers uniformly. The natural battleship gray assumes a light bronze patina over time that deepens the color but maintains a gray roof. Rugged and durable, Vermont Gray is the traditional “slate gray” stone roof. Occasional pieces may show buff and brown tones.

Unfading Green

Shades of green and gray/green that will not change color. Some deposits are very vivid bright green, while others are a softer range of green to gray/green. What you see is what you get. Produced in Vermont.

Sea Green

Sea Green is green or gray green when first quarried. After application to the roof and exposure to the elements the majority of these slates weather to shades of buff and brown. The predictability of this change is particularly advantages when replacing or repairing brown slate or when trying to achieve a 100% brown roof. Produced in Vermont.

Mottled Purple

Green and purple combine to form unique patterns in each slate. Some roofing slates are mostly purple while in others the green predominates. No two slate are exactly alike. Produced in Vermont.

Unfading Red

The one and only, true Unfading Red carries a price tag reflects the limited deposits and difficult production of this exotic and extremely hard material. Brick red in color and one of the most durable slates known. Produced in Washington County, New York.