M & M Prime Roofing | Roofing Services in Hillsboro, OR 97123

Flashing failure around chimneys, vents, and valleys is a common leak source here. Our waterproofing repair service doesn't just patch the visible problem; we assess the entire moisture control system. We seal the failed flashing with premium, flexible sealants and often integrate a secondary waterproofing membrane to create a durable barrier against our heavy seasonal rains, preventing water from damaging your roof deck and interior.

Absolutely. In many Hillsboro homes, compromised ridge caps allow wind-driven rain to seep under the roofing and can lead to water running down behind the siding. When we perform a siding replacement, we first ensure the roof edge and ridge are properly sealed. We then install new siding with integrated weather-resistant barriers and proper flashing details at the roof-to-wall intersection, addressing the root cause to protect your home's structure from top to bottom.

Roof flashing is designed to direct water away, but without a proper moisture control system underneath, any small failure can lead to major leaks. Our moisture control installation involves installing high-performance underlayment and ventilation solutions that manage any incidental moisture. This creates a critical backup layer of defense specifically for our local climate, so if flashing is compromised by wind or wear, your roof deck and attic remain protected from water damage.