PVC & flat roofing—watertight, reflective, built for low-slope.

Precision repairs and replacements for homes, multifamily, and light commercial.

Our low-slope team installs code-compliant single-ply systems with clean details, positive drainage, and long-term performance.

  • PVC flat roofing photo 1
  • PVC flat roofing photo 2

Why homeowners & owners choose PVC

  • Heat-welded seams — welded seams create a monolithic bond with excellent seam strength compared to taped seams. :contentReference[oaicite:0]{index=0}
  • Reflective “cool roof” options — light/reflective membranes can run 50°F+ cooler than dark roofs in summer, helping reduce heat gain. :contentReference[oaicite:1]{index=1}
  • Chemical & grease resistance — PVC is a good fit near kitchens or restaurants where animal fats/grease are present. :contentReference[oaicite:2]{index=2}
  • Versatile installation — ballasted, mechanically attached, or fully adhered systems to suit the deck and project. :contentReference[oaicite:3]{index=3}

Flat roof basics (low-slope)

Low-slope roofs are designed to drain—new construction commonly targets a minimum 1/4" per foot slope for single-ply membranes; on re-roofs, codes focus on achieving positive drainage. Tapered insulation is often used to move water to drains and scuppers. :contentReference[oaicite:4]{index=4}

PVC & flat roofing systems

  • PVC single-ply — durable, reflective, heat-welded seams; widely used on homes, multifamily and light commercial. :contentReference[oaicite:5]{index=5}

  • TPO single-ply — reflective thermoplastic alternative for some low-slope applications.

  • Modified bitumen — time-tested multi-ply options for low-slope roofs.

  • Coatings & maintenance — extend service life when substrates are in suitable condition.

Smart details that add years

  • Drainage first — tapered insulation plans target positive drainage and help avoid ponding that accelerates wear. :contentReference[oaicite:6]{index=6}
  • Walkway protection — welded PVC walkway pads create safer service paths and help protect membranes near rooftop equipment. :contentReference[oaicite:7]{index=7}
  • Attachment that fits — fully adhered, mechanically attached, or ballasted per deck, exposure, and warranty requirements. :contentReference[oaicite:8]{index=8}

PVC & flat roof services

We handle leak diagnostics, targeted repairs, full replacements, and maintenance programs for low-slope roofs across the Eastside—grounded in manufacturer-approved methods and clean detailing. :contentReference[oaicite:9]{index=9}

  • Repairs: seams, penetrations, scuppers, drains & edge metal

  • Re-roofs & tear-offs with deck repairs and tapered insulation plans

  • Annual maintenance & walkway pad installs near rooftop equipment

Our low-slope process

  1. 1) Inspect & Document — substrate, insulation, drainage, flashing; photo report.
  2. 2) Options & Quote — PVC vs. alternatives; attachment method; tapered plan if needed.
  3. 3) Protect & Prep — site protection; tear-off (if required); deck repair.
  4. 4) Install — manufacturer-approved details, welded seams, clean terminations.
  5. 5) Final Walkthrough — punch list, drain test as needed, warranty registration.

PVC & Flat Roofing FAQ

How is PVC different from other membranes?

PVC uses heat-welded seams to form a watertight bond; assemblies can be mechanically attached, adhered, or ballasted depending on the project. :contentReference[oaicite:10]{index=10}

Do white PVC roofs help with heat?

Yes—reflective “cool roofs” can stay 50°F+ cooler than conventional dark roofs under summer sun, reducing heat transfer into the building. :contentReference[oaicite:11]{index=11}

What about foot traffic around equipment?

We add welded PVC walkway pads to create safe service paths and help protect the membrane near units and ladders. :contentReference[oaicite:12]{index=12}

My flat roof holds water—can that be fixed?

Often, yes. Tapered insulation layouts are designed to create positive drainage toward drains or scuppers and help avoid ponding. :contentReference[oaicite:13]{index=13}

Proudly Serving

South of Arlington and north of I-90 — Bellevue, Sammamish, Redmond, Kirkland, Medina, Duvall, Bothell, Monroe, Snohomish, Everett, Lake Stevens, Edmonds, Kenmore, Mukilteo, Clyde Hill, Carnation, Woodinville, Marysville, Stanwood-Camano Island.

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Our Services

Expert solutions you can trust.

What Our Clients Say

  • We had a great experience working with Roofworks Northwest on a project inside our commercial building. Sam and Sean were both friendly, professional, and extremely knowledgeable. They explained the process clearly, answered all our questions, and made sure everything was done to a high standard. The quality of their work really stood out, and they completed everything on time and with great attention to detail. Highly recommend Roofworks Northwest for anyone looking for reliable, top-notch service!

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    ~Nicole Kearney
  • After obtaining multiple bids for a total roof replacement we selected RoofWorks for the project. Sam identified several issues during his inspection that none of the others caught, and in talking with him it was clear that he takes pride in workmanship and doing things right. The office was great to work with; excellent communication throughout the process. The work crew was super respectful of our home and property, and they were very diligent and efficient. There were several follow-up visits to make sure everything was perfect. Cleanup after the fact was impeccable. We couldn’t be happier with the work.

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    ~Don Elliott
  • These guys installed a flat walkable roof on our house almost 5 years ago. It was an unusual project that required rebuilding the underlayment, removing steel and glass railings, and re-installing them. They set realistic and reasonable expectations before the work started, did fantastic work during the project, and have remained super-responsive every time I've contacted them with questions or requests ever since. They are clearly in it for the long run. I would use them again.

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    ~Peter Moon
  • Provided a comprehensive bid, work was quality and on time at a very competitive cost. Communication was great start to finish.

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    ~Lance Morehouse
  • Roofworks Northwest did a great job with roof repairs and treatment. The person was friendly and professional. They went on my list of trusted vendors.

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    ~Cathy
  • I recently hired Roof Works to inspect, clean, and treat my roof. They arrived at the scheduled time and completed the job in a timely manner, including cleaning out the gutters. They communicated with me every step of the way and the cost was very reasonable. If i ever need any work done in the future i would not hesitate in hiring Roof Works again. Thank you Team!

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    ~Pam Woods
  • We have a cabin in the San Juans only accessible by boat. He and his crew hauled everything up, tore off the old roof hauled that back and put on a new beautiful roof. This took a lot of thought and planning and could not have worked out better!! I can't imagine doing a job like this with anyone else! They did it in four days!! Amazing!

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    ~Kevin Mccarthy
  • Brendan and team are great!!! I have hired them a few times and they always do fantastic work! They work with you and listen to your needs. You can count on them.

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    ~Nick Ricard
  • Highly recommend RoofWorks Northwest. They were wonderful to work with from beginning to end! We have used them several times for some roof repairs and attic venting. They were responsive, showed up when they said they would be there and did great a job. We will definitely be using them for any future roof needs.

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    ~Ryann McCarthy
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