Greater Seattle’s outdoor culture is inseparable from the Pacific Northwest landscape, the trees, the water, the mountains, and the distinct quality of light that makes an outdoor space feel worth living in. A well-built deck transforms a backyard into an extension of your home. It’s where families gather, where mornings start, and where the value of your home’s outdoor environment becomes tangible.
Integrity Roofing & Construction builds decks throughout Greater Seattle using materials and systems designed to perform in the Pacific Northwest’s demanding wet climate. From Trex composite to cedar, Dec-Tec membrane to Rain Escape waterproofing, we match the right system to your space, your goals, and your home.
Ready to enjoy your backyard again? Contact Integrity Roofing & Construction for a free decking estimate in Greater Seattle.
Decking Systems and Materials We Install
Trex Composite Decking
Trex is one of the most popular composite decking products in the country, and it’s particularly well-suited to Greater Seattle’s environment. Unlike wood, Trex does not absorb moisture, rot, splinter, or require painting or staining. It holds its appearance with minimal maintenance — occasional cleaning is all it needs — and is available in a wide range of colors and profiles.
Dec-Tec Membrane Systems
For decks built over living spaces, a deck above a garage, a rooftop deck, or any deck where water must be prevented from reaching the structure below, Dec-Tec waterproof membrane is the professional standard in the Pacific Northwest. Dec-Tec provides a fully waterproof, UV-stable, walkable surface that protects the space below while maintaining an attractive finished appearance year-round.
Trex Deck Rain Escape
The Trex Rain Escape system converts a traditional deck into a dry-space area below. An integrated under-deck drainage system captures water that falls between deck boards and channels it away through a concealed gutter system, keeping the area beneath the deck dry and usable even during Greater Seattle’s heaviest rainfall.
Cedar Decking
Cedar is a naturally decay-resistant wood with a warm, rich character that fits the Pacific Northwest aesthetic perfectly. Cedar requires more maintenance than composite, periodic cleaning, sealing, and staining, but for homeowners who value natural materials, it remains a compelling choice.
Custom Handrails and Full-Scale Design
We design and build custom handrails in wood, metal, and composite materials, to code and to your aesthetic preference. For larger projects, we provide full-scale deck design and engineering, ensuring the final result is structurally sound, permit-compliant, and exactly what you envisioned.
Common Decking Problems in Greater Seattle and How We Address Them
Wood Rot and Moisture Damage
Greater Seattle’s wet climate is particularly hard on untreated or poorly maintained wood decking. Moisture that penetrates wood surfaces or accumulates at fastener points causes rot that compromises both structural integrity and appearance. We remove and replace damaged structural components and resurface decks with materials better suited to Pacific Northwest conditions.
Fastener Corrosion
Standard steel fasteners corrode rapidly in wet environments, leaving rust stains on deck surfaces and eventually failing structurally. We use corrosion-resistant fasteners appropriate for the marine-influenced climate of Greater Seattle.
Deck Settlement and Unlevel Surfaces
Over time, ground-level decks can settle unevenly as the soil beneath shifts with seasonal moisture changes. We assess and correct settlement issues during deck restoration projects.
Frequently Asked Questions About Decking in Greater Seattle
What decking material holds up best in Greater Seattle’s rain?
Trex composite and Dec-Tec membrane systems offer the best moisture resistance for Greater Seattle’s climate. Composite decking doesn’t absorb water, rot, or require seasonal maintenance treatments. Cedar performs well when properly maintained, but requires more attention in a wet environment.
Do I need a permit to build a deck in Greater Seattle?
In most jurisdictions within Greater Seattle, decks above a certain height or square footage require a building permit. Requirements vary by city and county. We handle the permitting process as part of every deck project.
How long does a Trex composite deck last?
Trex composite decking carries a 25-year limited residential warranty covering staining, fading, and material defects. With proper care and cleaning, composite decks maintain their appearance and structural integrity for decades.
What is the benefit of the Trex Rain Escape system?
Rain Escape converts the space beneath your deck from an unusable wet area into dry, protected outdoor living or storage space — even during Seattle’s rainiest months. It dramatically increases the usable square footage of your outdoor area.
How do I maintain a cedar deck in Greater Seattle?
Cedar decks in Greater Seattle should be cleaned annually, inspected for signs of rot at fastener points, and restained or sealed every two to three years. A well-maintained cedar deck can last 15 to 20 years or more.
Ready to build the deck you’ve been planning? Contact Integrity Roofing & Construction for a free decking estimate in Greater Seattle.