Full Flat Roof Replacement in Lake Tapps: Drainage & Structural Fix

Cases

Lake Tapps, WA

June 20, 2024

Time reading:

10min

[heading-style-h3]Full Flat Roof Replacement in Lake Tapps: Drainage & Structural Fix[heading-style-h3]

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<<A 25+ year-old residential flat roof showed sagging, drainage issues, and recurring leaks. Flat Roof Pros performed a full tear-off and installed a new system improving drainage and durability.>>

New white PVC flat roof installation on a modern lakeside residential home, with clean seams, skylights, and edge metal detailing visible.

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

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

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The homeowners of a two-story property in Lake Tapps noticed pooling water, soft spots, and worsening leaks across their flat roof. The existing black hot tar torch-down system was well beyond its useful life. They contacted Flat Roof Pros for a complete replacement and long-term solution.

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

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The project involved a two-story residential property with a 1,700 sq. ft. total flat roof area. The existing roofing system was a black hot tar torch-down roof that had exceeded its useful life. With multiple drainage issues and structural concerns, the homeowners needed a complete overhaul using reliable, commercial-grade materials.

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

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The existing roof was in non-certifiable condition and had multiple issues:

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Deck sagging due to prolonged membrane shrinkage
Multiple areas of pooling water
Failing parapet walls and outdated drainage
No reliable insulation or vapor barrier

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Aging torch-down flat roof on a residential lakeside home showing signs of wear, granule loss, and ponding—ideal candidate for flat roof replacement or restoration.

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

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Flat Roof Pros removed the aging roof system and rebuilt it with performance and durability in mind:

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Tear-Off and Deck Repair

Removed old black torch-down roofing and damaged materials
Replaced sagging plywood sections to reestablish a stable surface

Drainage and Slope Correction

Expanded cricket structures to improve water diversion
Installed 2 new scuppers to eliminate pooling zones

New Roofing System

Installed vapor barrier, PolyIso insulation, and DensDeck cover board
Applied a 60mil Duro-Last PVC membrane using a mechanically attached system

Edge and Wall Protection

Installed new coping and fully flashed all penetrations and parapets

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

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Improved Drainage: Cricket redesign and scuppers fixed standing water issues
Stronger Decking: Replaced weak areas to restore structure and prevent sagging
High-Performance System: Installed white PVC roof with reflective and durable properties
20-Year Warranty: Covered by both manufacturer and Flat Roof Pros

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Top-down drone view of completed white PVC flat roof installation on a modern residential home, featuring skylights, clean seams, and upgraded waterproofing.

Drone view of residential home with newly installed white PVC flat roof next to older dark membrane roofing, highlighting the contrast between restored and aging roof sections.

Residential flat roof with newly installed white PVC membrane in a lakeside neighborhood, featuring skylights, edge metal, and clean waterproofing details.

Aerial view of residential home with newly installed white PVC flat roofing system, featuring skylights, clean seams, and improved waterproofing in a landscaped neighborhood.

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[heading-style-h4]Customer Review[heading-style-h4]

Tom D.

We have been our home for 25 years, and this tear off-roof job of the old black hot tar material and replacing it with this new white material by Flat Roof Pros was the most satisfying, professional, superior job that we have ever had by their extremely professional Crew. From the Bidding process to the finished product, it was seamless, stressless and exactly on time, with not a speck of clean-up to be done by me. From the time of meeting the foreman of the project, to their excellent emails to keep track the job issues and timing, it was exactly as an 86-year-old homeowner would wish, that is, always in communication with management. Their Team always showed up exactly on time, and fully prepared with roofing supplies as they needed them. I would give them 10 stars if possible. Finally, they were so efficient and quick it was amazing compared to the other roofers I had in the past.

Need a Roof That Lasts? Contact Us Today!

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Flat Roof Pros delivers long-term solutions, not just quick fixes. From structural rebuilds to energy-efficient PVC systems, our replacements are built to perform and protect.

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📍 Proudly serving Lake Tapps and surrounding areas

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→ More about the Replacement service

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Whether it’s ONE buildings or 30+, we provide reliable roofing solutions that minimize disruption and maximize ROI — from fast leak repairs to full-scale replacements.

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