New Roof Pros | Roofing Services in North Plains, OR 97133

In our climate, underlayment is your roof's first line of defense against moisture. It acts as a secondary water barrier beneath your shingles. Given the frequent dampness and rain in North Plains, we use premium, high-traction underlayment to prevent water intrusion that can lead to rot and mold in your roof deck, directly addressing a common local problem from day one.

Roof valleys are critical drainage channels and a frequent leak source here. During a replacement, we don't just re-shingle over old valleys. We strip the area down to the deck, install new ice and water shield—a self-adhering waterproof membrane—along the entire valley, and then apply shingles with a woven or closed-cut valley method. This creates a fortified, water-shedding system designed for our area's heavy rainfall.

A reroof (adding a second layer of shingles) can be a cost-effective option, but it has limitations for these specific issues. Since we don't remove the old roof, we cannot inspect or repair damaged underlayment or faulty valley flashing underneath. If leaks or underlayment failure are suspected, a full roof replacement is often the recommended, long-term solution to properly resolve the core problem and protect your home's structure.