TPO ROOFING
Installation, repair, and replacement for commercial properties across the Portland metro and Southwest Washington.
TPO is the most widely installed commercial flat roof membrane in the Pacific Northwest. Flow Roofing is a certified TPO installer serving commercial property owners, property managers, HOAs, and multifamily buildings throughout the Portland metro. TPO runs $7 to $12 per square foot installed, lasts 20 to 30 years when properly installed and maintained, and qualifies for No Dollar Limit manufacturer warranties of 15 to 35 years.
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Thermoplastic Polyolefin membranes handle sustained Pacific Northwest rainfall exceptionally well. Heat welded seams are engineered to outlast the membrane itself. The reflective white surface reduces cooling costs during warmer months. TPO has earned its place as the dominant commercial flat roof system in this region for clear reasons.
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As a certified installer, Flow Roofing offers extended manufacturer warranties including No Dollar Limit coverage, the highest level of commercial roofing protection available, that non certified contractors cannot provide. NDL warranties cover the full cost of repair or replacement for 15 to 35 years and are fully transferable if you sell the property. All TPO repairs are backed by a 1 year workmanship warranty. Full replacement workmanship warranty coverage varies by scope. Commercial low slope full replacements carry 5 year standard, 10 year upgraded, or lifetime depending on package.
Why TPO Is Portland's Most Popular Commercial Roofing System
Commercial property owners and managers choose TPO for flat and low slope roofs because it combines long term performance with cost effectiveness. TPO delivers strong resistance to moisture, mold, and UV exposure. Heat welded seams will not peel or separate in wet conditions. The reflective white surface improves energy efficiency. Properly installed and maintained, TPO systems last 20 to 30 years.
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TPO works across the full range of commercial building stock in our market. Warehouses and distribution centers, office buildings, multifamily properties, retail centers, mixed use developments, and light industrial facilities all run TPO well.
TPO vs PVC: Which Is Right for Your Portland Building?
Both TPO and PVC are thermoplastic membrane systems that perform well in this climate, but they serve different needs.
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TPO is the more cost effective option, $7 to $12 per square foot installed, and the right choice for most commercial buildings with adequate drainage.+
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PVC costs slightly more, $9 to $14 per square foot, but offers superior resistance to ponding water and chemical exposure. PVC is the better fit for restaurant rooftops, food processing facilities, and buildings where water pools or where rooftop equipment exposes the membrane to grease, oil, or chemicals.
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Flow Roofing installs both systems and will give you an honest recommendation based on roof slope, drainage performance, building use, and budget. If you are unsure which system fits your building, our free inspection delivers a clear written answer. Written estimates follow the inspection. Commercial estimates run 24 hours to 2 weeks depending on project scope.
TPO Roofing Services
Flow Roofing provides the following TPO roofing services for commercial and multifamily properties.
TPO Roof Installation New construction and replacement installations completed to manufacturer specifications and Oregon and Washington building codes.
TPO Roof Repair Seam repair, flashing repair, penetration repair, membrane patching, and leak detection for existing TPO systems. All repairs backed by a 1 year workmanship warranty.
TPO Roof Maintenance Biannual maintenance programs including written condition reports, seam and flashing inspections, drain cleaning, and minor repairs designed to extend membrane life.
TPO Roof Inspection Comprehensive written condition assessments with photos and prioritized repair or replacement recommendations.
No Dollar Limit Warranty Installations Certified installer status allows Flow Roofing to offer NDL warranties of 15 to 35 years on qualifying TPO projects.
TPO Roofing Across Portland's Commercial Districts
Flow Roofing installs and services TPO roofing systems throughout the highest density commercial and industrial areas in our market, including Downtown Portland, the Pearl District, Lloyd District, Central Eastside Industrial District, Northwest Industrial, Swan Island Industrial Park, Rivergate Industrial District, South Waterfront, and the Airport Way corridor near PDX. In the suburbs we serve Beaverton, Hillsboro, and the Sunset Corridor, Lake Oswego and Kruse Way, Tigard, Tualatin, Wilsonville, and Gresham. In Southwest Washington we serve Vancouver, Camas, Washougal, Ridgefield, and Longview.
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Flow Roofing provides TPO roofing installation, repair, and replacement throughout the Portland metro, Willamette Valley, Oregon Coast, and Southwest Washington.
Licensed Oregon CCB #218471. Washington FLOWRR*791Q4.
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