Seattle, WA
[heading-style-h3]Multifamily Condo in Seattle: A Roof Made New[heading-style-h3]
<<What started as a worn, leaking torch-down roof became a fully renewed PVC system built to keep this multifamily building dry, stable, and protected for years ahead.>>
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[heading-style-h4]Project Overview[heading-style-h4]
[heading-style-h6]The Situation[heading-style-h6]
The flat roof over the units section had reached the end of its service life. The 15+ year-old SBS/APP torch-down system showed significant deterioration: standing water, over 35% granule loss, multiple failed patches, and areas of dry-rot plywood. A full roof replacement was necessary to protect the property and prevent further damage.
[heading-style-h6]The Client[heading-style-h6]
The project focused on the 3,410 sq. ft.:
- Main Roof Area: 2,610 sq. ft.
- Parapet Walls & Curbs: 800 sq. ft.
The property owners needed a durable, warrantied flat roof system that addressed existing damage and ensured long-term reliability.
[heading-style-h4]Challenges[heading-style-h4]
- Extensive granule loss, failed patches, and ponding water.
- Areas of dry-rot plywood and potential joist damage.
- The existing BUR system needed complete removal for proper PVC installation.
- Coping and flashing had to be replaced to achieve watertight perimeter edges.
[heading-style-h4]Solution[heading-style-h4]
Flat Roof Pros installed a PVC roofing system engineered for long-term performance.
- Removal
- Removal of the entire SBS/APP torch-down system down to the substrate
- Roof Repairs
- Replacement of three sheets of dry-rot plywood
- Additional substrate/joist repairs performed as needed
- PVC Roofing System Installation
- Installation of insulation to even the deck and reduce condensation
- Installation of two layers of fire-retardant barrier
- Installation of the PVC system
- Replacement of prefabricated metal coping
- Waterproofing of all vent stacks, flashings, and penetrations
- Application of silicone to coping for added seal
- Cleanup
- Full site cleanup and debris removal
[heading-style-h4]Completed Project[heading-style-h4]
The property now benefits from:
- A fully renewed PVC roofing system
- Class A fire rating components
- Improved performance and reliability
- 20-year material manufacturer warranty
- 20-year workmanship warranty
Worried Your Roof Won’t Last Another Season?
Ignoring leaks leads to interior damage and higher repair costs.
Flat Roof Pros installs durable PVC systems that keep the roof dry, protect the building, and help you avoid unnecessary time and money loss.
Serving Seattle and surrounding neighborhoods
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Full Flat Roof Replacement in Lake Tapps: Drainage & Structural Fix
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Silicone Over Tear-Off: How We Revived a Rotting Multi-Family Roof in Seattle
This Seattle multifamily roof was over 20 years old and showing dry rot, leaks, and surface failure. A full tear-off would have disrupted residents and driven up costs. Read how the roof was restored with a silicone system that sealed damage and extended its life.
Areas We Serve Roofing
We’ve Protected Thousands of Roofs Across These Places
Cities We Serve
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Benton County
Clackamas County
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Our Locations
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Head Office
Seattle, Washington
3420 C St NE, Unit 403
Auburn, WA 98002
Eastern Washington Office
Spokane, Washington
601 W 1st Ave, Suite 1400
Spokane, WA 99201
Oregon Office
Portland, Oregon
650 NE Holladay St, Ste 1600
Portland, OR 97232