Large commercial flat roof under a clear sky

Firestone Master Contractor · Since 1994

Protecting Your Commercial Investments with Precision.

Hello, Pacific Northwest! We provide friendly, reliable commercial roofing solutions tailored to industrial properties. We do it right the first time.

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More Than Just Tear-Offs

At Cascade Flat Roofs, we believe in radical transparency. Before we ever recommend a full roof replacement, we utilize drone-assisted infrared thermography for non-destructive moisture scanning. This highly specific workflow allows us to pinpoint exact areas of saturated insulation beneath your membrane.

By surgically targeting repairs instead of defaulting to a full deck replacement, we've saved our Pacific Northwest clients thousands of dollars. Whether you manage a logistics warehouse in Seattle or a retail complex in Portland, our goal is to extend the life of your asset.

Operating Hours: Monday - Friday, 6:00 AM - 4:00 PM
Service Area: I-5 Corridor (Seattle to Portland)

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Roofing technician inspecting a commercial roof edge

Commercial Roofing Systems

We specialize in single-ply membrane roofing, offering unparalleled durability against the constant drizzle and varied climate of the PNW. Learn more about our material selection process.

TPO (Thermoplastic Polyolefin)

Our most popular option for commercial facilities. TPO offers excellent UV resistance and heat-reflective properties. We utilize wide-roll installations to minimize seams, reducing the potential for leaks. Our crews are factory-trained in hot-air welding techniques ensuring a monolithic, watertight barrier.

EPDM (Ethylene Propylene Diene Terpolymer)

Known as the 'rubber roof', EPDM is incredibly resilient to hail, extreme temperature fluctuations, and thermal shock. We recommend 60-mil or 90-mil reinforced EPDM for buildings requiring a lifespan exceeding 30 years. It's a proven, time-tested solution for the damp Northwest environment.

PVC roofing material on a commercial building

PVC (Polyvinyl Chloride)

Ideal for restaurants, manufacturing plants, or facilities exposed to grease, oils, or harsh chemicals. PVC membranes are highly resistant to chemical degradation and offer superior fire ratings. We mechanically attach or fully adhere these systems based on your specific wind uplift requirements.

*Warranty lengths vary by system and manufacturer specifications. Ask about our 30-year NDL (No Dollar Limit) options.

Let's Discuss Your Roof

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