Roof Deck Waterproofing

What This Service Involves

A rooftop deck or balcony is both a finished surface and a roof over the space beneath it, which makes reliable waterproofing essential in our rain-soaked region. We apply pedestrian-rated membrane and coating systems that stand up to foot traffic, patio furniture, and the standing water that gathers after a Puget Sound downpour. Careful detailing at door thresholds, posts, and drains stops the intrusion points that plague deck assemblies and rot the framing below. The finished deck stays usable and attractive while protecting the structure and rooms underneath.

Benefits

Protects the living space directly below the deck from leaks; uses traffic-rated systems that withstand furniture and foot wear; details thresholds and drains to stop common intrusion points; keeps the deck attractive and fully usable in wet weather

Our Process

1) Inspect the deck framing and slope, correcting rot and drainage first; 2) Prepare the substrate and reinforce all transitions and drains; 3) Apply the pedestrian-rated waterproofing system in specified layers; 4) Finish with a durable wear surface and test for watertightness

What Affects the Cost

Deck square footage and the traffic-rated system chosen; condition of the framing and any rot repair needed; complexity of thresholds, posts, railings, and drains; wear-surface finish and slope corrections required

Best Time of Year

Waterproof decks in dry summer conditions so every layer cures fully before the wet season tests the finished surface.