Flat roofs, coatings and patio covers across Tualatin, OR 97062

Flat roofs on Tualatin commercial buildings tend to fail in a few familiar ways. Drains and scuppers clog with leaves and grit, water ponds in low spots, and the membrane breaks down where it sits wet for days. Rooftop units get serviced over the years, and each visit can leave a puncture or a loose pitch pocket. Where the roof meets a parapet wall, old flashing pulls away and lets water into the wall. We walk the whole surface, mark every soft spot and failed seam, and give you options that range from targeted repairs to a coating or a full tear-off.

Coatings make sense when the existing membrane is mostly dry and sound. A silicone or acrylic coating over a cleaned and repaired roof can add years and cut down on leaks without stripping the building. When the insulation underneath is soaked, coating only traps the problem, and a replacement with torch-down or single-ply is the better spend. A moisture check from the top tells us which side of that line a roof falls on.

Tualatin sits low along the river, and fall and winter often bring fog and gray, damp air that hangs on for days. Roofs dry slowly, so moss and algae get a head start, especially on north-facing slopes and on flat roofs where debris collects. Storms from the southwest bring bursts of heavy rain that overwhelm small drains and undersized gutters. Patio covers and porch roofs built with a very low pitch take the worst of it: water sits on them, leaves pile up, and the joint where they meet the house wall rots if it was never flashed properly.

On commercial jobs we plan around business hours, deliveries and parking, and we can stage work so one section of a building is open at a time. For homes, patio cover and porch roof work is usually a one- or two-day job. Ongoing maintenance plans suit both: we clear drains and gutters, check seams and flashings, and report what we find with photos. We check City of Tualatin permit rules for each job and pull permits where they are required.