• Multi Gables

    Slate looks particularly beautiful on the large expanse of a tall roof.

  • Roof and Gables

    Custom slate mixtures can create a unique look.

  • Peaked Roof

    Pleasing architectural effects can be achieved by blending different sizes and colors of slate.

  • Aged Roof Slate Detail

    Slate roofing tiles are still manufactured by hand using traditional methods.

  • Rounded Tower

    Slate is one of the most aesthetically pleasing and durable of all roofing materials.

  • French Chateau Roof

    Installed properly, slate roofs require relatively little maintenance and will last 75 to 150 years or longer.

  • Slate Detail

    Textural slate roofs incorporate slates of different thicknesses, uneven lower edges, and a rough texture.

  • House on Cliff

    When struck, high-grade slate tile will emit a clear, solid sound. Severely weathered slates give off a dull thud when tapped.

  • French Style Roof with Round Tower

    A very traditional roofing material, slate should be laid by roofers of experience and training.

  • Slate Detail

    Visible bands on the surface of slate represent geologic periods.

  • Steep Gray Roof with Brick Chimney

    Slates are classified as fading or unfading according to their color stability.

  • Steep Dark Roof with Subtle Varigation

    Slate is a fine-grained, crystalline rock derived from sediments of clay and fine silt which were deposited on ancient sea bottoms.

  • Varied Texture Roof Over a Brick Facade and Chimney

    Slate is created by movements in the earth’s crust and the resulting heat and pressure.

  • Black Roof

    The presence of carbonaceous matter, derived from the decay of marine organisms on ancient sea floors, gives rise to the black colored slates.

  • Bay Landing Hotel

    Black slates get their color from carbon matter – the ancient remains of marine organisms on the sea floor.

  • Steep Tudor Style Roof

    Slate consists of stable, weather-resistant minerals and is generally of high strength, low porosity, and low absorption.

  • Multi Color Roof

    Slate is composed of clay and mud that changed over time into stone, with inclusions of quartz, mica, and chlorite.

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California Slate Company, Inc.

Work
3344 Market Street
San Francisco, CA 94114
USA
+1 (415) 864-6862 Work
+1 (415) 814-2667 Fax
+1 (415) 710-9956 Cell

Enhance the beauty of your home with a custom-designed slate roof from California Slate Company. Founded in 2006, we focus solely on high-quality roofing slate and the needs of homeowners and contractors. With 20 years of experience in the industry and a detailed knowledge of our products and their application, we deliver unparalleled service and expertise.

As the premier resource for quality natural slate in the United States, we carry a wide selection of materials, many exclusive to us. Our large inventory helps reduce wait times, so your project can begin more quickly — and our long-standing relationships with the best slate producers around the world allow us to serve customers not only on the West Coast, but across the country.

Why Slate?

As durable as it is distinctive, slate is the most stable, longest lasting material you can put on your roof. Created by natural forces over millions of years, it’s abundant, fire resistant, and environmentally friendly — not to mention beautiful.

  • Photo of House
  • Photo of House
  • Photo of House
  • The Western States Roofing Contractors Association
  • Slate Roofing Contractors Association
  • National Slate Association Member
  • Globes Illustration Showing Slate Source Locations