Pacific Coast Roofing | General Contractors & Roofing in Lake Oswego, OR 97035

In Lake Oswego, the most frequent cause is a failure of the flashing—the metal strips that seal the seam between the skylight and the roof. Our persistent rain and temperature fluctuations can cause this flashing to corrode, loosen, or develop tiny cracks over time. A professional inspection can pinpoint if it's a simple flashing issue or a problem with the skylight sealant or frame itself.

Signs of underlayment damage often appear inside your Lake Oswego home before they're visible outside. Look for water stains on ceilings or walls, a musty smell in the attic, or peeling paint. Outside, you might notice cracked or curling shingles. Since underlayment is the water-resistant barrier beneath your shingles, damage compromises your roof's core defense. We recommend an inspection, especially after a heavy season of rain.

In many cases, a targeted repair is perfectly effective. We carefully remove the shingles over the damaged area, replace the compromised underlayment with a high-quality, modern alternative, and re-install the shingles to blend seamlessly with your existing roof. This spot-repair approach is a cost-effective solution for localized damage, common with issues like a long-term skylight leak, and can extend the life of your entire roof system.