JVR Roofing | Roofing Services in Ontario, CA 91762

In our area, flashing corrosion around chimneys, vents, and roof valleys is common. Key signs include visible rust stains, cracked or missing sealant, and granules from your shingles collecting in gutters near these areas. Most importantly, if you notice water stains on interior ceilings or walls, it often traces back to failed flashing. A professional JVR Roofing inspection can pinpoint corrosion early, preventing extensive water damage to your home's structure.

Roof valleys are critical drainage channels that handle heavy rainwater runoff. In Ontario, leaks here are often due to worn-out valley flashing, damaged shingles, or debris buildup causing water to back up. Our repair process involves clearing the valley, assessing the underlying flashing and decking for water damage, and installing a new, watertight valley system using materials like metal or specialized woven shingles. This targeted repair restores proper drainage and protects the vulnerable intersection of your roof planes.

While we always aim for the most cost-effective repair, a replacement may be necessary if an inspection reveals widespread flashing failure, extensive rot in the roof deck from chronic leaks, or if your existing shingles are near the end of their lifespan (typically 20-25 years). For Ontario homes with multiple, recurring leaks, a full replacement with modern, integrated flashing systems and high-quality underlayment offers a long-term solution. It stops the cycle of repairs and provides comprehensive protection with a new warranty.