Aluminum Shingles Carnation, WA Review
Carnation, WA
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What was involved in this Interlock® Slate roof installation in Carnation, WA?
This project used an Interlock® Slate system in Deep Charcoal on a home in Carnation, WA, completed February 1, 2020. The project covered roughly 28 squares of roofing in aluminum construction. Andy B. rated the work 5 out of 5 in a verified Google review on August 27, 2026. Sales Punctuality scored 5 out of 5. The installation was carried out by Interlock Metal Roofing (PNW) Inc..
2nd time around with Interlock, first time for house and now a few years later for my garage. Quality of product and installation are excellent and it matches the house roof perfectly. Expensive but in Washington what would you rather have a roof that last a lifetime or a 30year shingle that’s done in 10? The PNW is hard on roofs don’t keep paying!
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About Interlock Metal Roofing (PNW) Inc.
Interlock Metal Roofing (PNW) Inc. is the official installer of the Interlock® Lifetime Metal Roofing System throughout Washington and the greater Pacific Northwest. Trusted in Western Washington since 1997, we specialize in premium, heavy-gauge aluminum roofing engineered to handle the region’s relentless rain, coastal wind, moss growth, and freeze-thaw cycles — all backed by a Lifetime Limited Warranty and our promise: Never Re-Roof Again.® From Seattle and Tacoma to Bellevue, Bellingham, Stanwood, and Vancouver, WA, our factory-trained crews install five architectural Interlock® profiles — Slate, Cedar Shingle, Shake, Mediterranean Tile, and Standing Seam — each finished with the Alunar® Coating System for long-term color retention, corrosion resistance, and energy efficiency. Every Interlock roof is lightweight, non-combustible, and fully solar compatible, offering homeowners a beautiful, sustainable roof designed to last a lifetime in Washington’s demanding climate.