Need a High-Performance Flat Roofing Option?

If you’re a resident of Western Washington who is dealing with a failing flat roof, Green City Window Door & Siding offers a robust solution designed to resist leaks, withstand the local climate, and enhance your home's energy efficiency. Based in Bothell, we’re an experienced roofing company offering flat roofing products from Malarkey that provide superior protection and can significantly improve the overall thermal performance of your home. We’d love the opportunity to demonstrate the customer-focused service that has helped us earn an A+ rating with the Better Business Bureau.  

About Flat Roofs

Flat roofing systems differ significantly from traditional asphalt shingles in both structure and materials. Flat roofs provide a continuous surface that is particularly beneficial for residential structures that require efficient water drainage and space utilization, such as modern homes and extensions like garages or porches. These roofs are essential for designs where sloped roofs would be impractical or aesthetically displeasing.

General Benefits of Flat Roofing

Flat roofs offer a multitude of advantages, so it’s no surprise that they’re a preferred choice for many homeowners. The flat roofs we install are known for their:

  • Weather protection – Flat roofs are built to withstand the harsh weather conditions of Western Washington, from heavy rain to intense winds.
  • Longevity – When installed correctly, flat roofs can last as long as sloped roofs and deliver decades of service.
  • Energy efficiency – Flat roofs can be equipped with materials that reflect sunlight, significantly reducing heat absorption and lowering energy costs.
  • Ease of maintenance – The simple structure of flat roofs makes them easier to inspect and maintain compared to more complex roofing systems.

Our Superior Single-Ply PVC Roof Membrane

At Green City Window Door & Siding, we install high-quality single-ply PVC roof membranes known for their durability and performance. Here are some of the factors that make our PVC membrane the best choice for your roofing needs:

  • Wind uplift resistance – Our single-ply membrane is ideal for both low-rise and high-rise buildings, as it provides stability in fierce winds.
  • Durability – Our PVC membranes are resistant to dampness, ponding water, and extreme pH conditions, so they deliver long-lasting performance without compromising warranty protections.
  • Fire safety – Unlike some other roofing materials, our PVC roofing resists flames.
  • Environmental resistance – Capable of withstanding diverse types of pollution, our membranes exceed industry standards for longevity.
  • Energy savings – With high solar reflectivity, our white PVC membrane can reflect up to 90% of incoming heat, reducing energy consumption and potentially paying for itself through lower energy bills.
  • Color variety – We offer several colors, so you can fit your home's aesthetic seamlessly.

We Stand Behind Our Flat Roof Installation Services

Green City Window Door & Siding's flat roof installation services are carried out by a team of licensed, certified, and insured professionals. To ensure that our customers enjoy peace of mind about their investment, we stand behind our installations with a five-year workmanship warranty.

Choose Expert Flat Roof Installation

Don't wait for your flat roof problems to escalate. Contact Green City Window Door & Siding today to learn more about the flat roof installation and replacement services we offer to homeowners in Bothell and throughout Western Washington. With more than 50 years of experience, we are proud to be the region’s trusted flat roofing contractor.  

Trusted By the Biggest Names in the Business!