New Life for an Old Roof: Complete Tear-Off & PVC Replacement in Seattle

Cases

Seattle, WA

July 16, 2025

Time reading:

10min

[heading-style-h3] New Life for an Old Roof: Complete Tear-Off & PVC Replacement in Seattle[heading-style-h3]

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<<From failing TPO to flawless PVC—We replaced the old system, repaired damaged substrates and weathered parapet walls. All protected by 20-year warranties for performance and workmanship.>>

Flat Roof Pros completed white PVC flat roof installation on multi-family apartment complex in Seattle, WA – durable, energy-efficient roofing system with clean finish.

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[heading-style-h4]Project Overview[heading-style-h4]

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[heading-style-h6]The Situation[heading-style-h6]

Years of Seattle weather and limited maintenance had left this multifamily roof system in poor condition. The TPO membrane had failed in several areas, plywood was soft or rotted, and coping seams along parapet walls had opened. A complete replacement was the most cost-effective solution.

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[heading-style-h6]The Client[heading-style-h6]

A multifamily apartment community in Seattle with 6,847 sq. ft. of roofing:

3,334 sq. ft. main TPO roof
1,575 sq. ft. parapet walls
300 sq. ft. small roof sections
1,638 sq. ft. deck area

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The property owners wanted a long-term fix to stop active leaks, improve energy efficiency, and secure a manufacturer-backed warranty.

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Aerial view of multi-unit residential buildings with flat roofs in Seattle, showing aging roof membranes before replacement

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[heading-style-h4]Challenges[heading-style-h4]

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Replacing a roof with multiple sections and surfaces required careful staging:

Fully occupied property, requiring work to be staged with minimal disruption to residents
Main roof, small sections, parapets, and deck each needed specific materials and methods.
Tear-off uncovered hidden rotted plywood that required immediate replacement.
Deck and parapet work needed extra safety measures for crews and equipment.

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Drone photo of worn flat roof surface on a multi-unit residential building in Seattle, showing membrane damage, ponding, and aging material before full roof replacement

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[heading-style-h4]Solution[heading-style-h4]

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Flat Roof Pros completed a full tear-off of all roofing systems, repaired the damaged substrate, upgraded insulation, and replaced coping where needed.

Main Roof: Installed PVC for reliable waterproofing.
Deck Area: Installed PVC for extra durability and walkability.
Parapet Walls: Restored and sealed with PVC to protect perimeter edges.
Insulation Upgrades: Improved thermal performance across all living spaces.

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[heading-style-h4]Completed Project[heading-style-h4]

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Leak-Free Protection: All roof areas are now fully waterproofed.
Improved Energy Efficiency: Enhanced insulation reduces heat loss.
Durability in High-Traffic Areas: PVC ensures long-term deck performance.
Coverage: Backed by 20-year manufacturer and 20-year workmanship warranties.

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Aerial view of a Seattle apartment building with a newly installed white PVC flat roof and rooftop deck by Flat Roof Pros

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