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Slate Roof Tiles in Washington State

Slate Roof Tiles in Washington StateThe most Northwestern U.S. state in the lower 48, Washington’s natural beauty, coastal climate, and abundant tree life have all contributed to its unofficial nickname: the Evergreen State. In addition to its mountainous splendor, Washington has earned a reputation as a jumping-off point for many hugely successful businesses. To name just a few, Amazon, Microsoft, Costco, and Starbucks all have their headquarters located within Washington State. Although Washington’s climate varies considerably from wet and coastal to arid and dry as it spans the Cascade Mountain range, a North Country Slate roof will function in all weather and climate conditions and provide a natural majesty that matches that of Washington itself.

While our Unfading Black is undeniably our most popular color in the state, our full range of slate color options is available and can be found across the state in cities such as Seattle, Bellevue, Medina, Gig Harbour, Yakima, and Orcas Island.

How to Order Slate Roofing Tiles in Washington

Give us a call or send us an email, and let our outstanding sales and service team get your slate roof journey started. Our Quick Quote tool is available for pricing simple repair jobs, or let our team provide a more thorough quote for new builds or historic refurbishments. We also offer design support services to ensure your architect and builder have all the materials needed to get the job done right. We’re happy to ship you sample slates in all of our fabulous slate color options to help you choose the perfect slate for your dream roof. Once you’ve chosen your slate, allow us to ship the roofing material directly to your job site and get your 100-year roof started!

Slate Roofing Projects in Washington

Slate has been keeping people warm and dry since the early 14th Century, with the earliest use of slate as a roofing material being traced to the notoriously challenging climate of Northern Europe. While roofing slate was originally applied with whichever sizes and thicknesses of slates were available at the time, its manufacture and extraction has improved dramatically over the centuries. It’s now most commonly trimmed to 18 or 20 inches long by between 8 and 14 inches wide for field slates, although it can be produced in both larger and smaller sizes. The standard width for roofing slate is ¼-3/8 inches, and will usually weigh anywhere from 935-1,170 lbs per 100 square feet of roof area.

For more than two decades, North Country Slate has been providing Washington roofers, homeowners, and businesses with the best quality roofing material available in North America. Our slate roof tiles can be seen on top of homes and businesses across the state. Some of the projects we are most pleased with having supplied slate tiles include:

  • Fort Flagler State Park Hospital Building in Nordland, WA (Unfading Black)
  • Fort Colombia State Park in Chinook, WA (Unfading Black)
  • The Spokane County Courthouse Tower in Spokane, WA (Unfading Black)

The Advantages of Slate Roof Tiles

Roofing slate tiles are among the most resilient and durable roofing materials available. Slate is naturally fire-resistant, and it is immune to freeze-thaw cycles that leave lesser roofing materials warped or compromised. ASTM S1 graded slate is capable of withstanding both hailstorms and hurricane-force winds. Properly installed, a slate tile roof will have a service life three times longer than inferior shingle or synthetic slate roofs.

North Country Slate prides itself on providing an outstanding customer experience. Because our success is only built upon our customers’ satisfaction, we make it our priority to ensure that your slate roof experience is second-to-none. From our design support services for architects and builders, to our database of qualified slate roofs contractors we’re happy to recommend, we spare no expense in making certain your slate roof meets all your demands and provides your home or business with a century of security and style.


Nominal 1-inch lumber or ¾-inch APA plywood is the recommended roof decking for installing slate roofs. These materials provide minimum while nailing the slate to the roof deck, and supports the weight of the slate between rafters.

Natural slate roof tiles have demonstrated their effectiveness in the harshest climates on the globe. ASTM S1 graded roofing slate is naturally resistant to both fire and freeze-thaw cycles, allowing it to excel in all climatic conditions.

Absolutely! Slate tiles damaged by windborne debris or fallen tree limbs can be removed and replaced by qualified slate roof contractors or skilled handyperson. If fewer than approximately 20% of a roof’s slate tiles are damaged, they can be replaced without compromising the roof. Instructions for replacing a broken slate are available here.


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Chris Mccardle
Chris Mccardle
I have been purchasing slate from North Country slate for over 10 years now. I have never had one single issue with North Country Slate. Customer service is always on point, the communication is quick and accurate. From pricing to the shipping, the whole experience is easy and flawless. Thank you North Country for the the great service.
dale grube
dale grube
North Country Slate is professional, courteous and accurate. From a distributor standpoint they are everything you want/need. Sheena is a perfect 10.
North Country Slate delivers a high quality product. They take pride in providing the best customer experience.
John C
John C
North Country Slate is an excellent slate to use for your projects. We've used it extensively, and most recently at the Maryland State Capitol. This project was one of the finalists for International Steep Slope Project of the Year.
Mika Hunter
Mika Hunter
Chris and the rest of the staff at North Country slate are such a pleasure to work with! We have bought many thousands of squares of slate from them and every transaction has gone smooth and quality has been exceptional. Great people
Amy Hersh
Amy Hersh
Highly recommend North Country Slate. Our sales representative, Sheena Owen, is responsive, knowledgeable and the order process is smooth and efficient. We are very pleased by the quality of the slate we receive every time we order and their pricing is very reasonable. Can't go wrong with North Country Slate!