Roofing in Union City, CA

Serving Union City and Surrounding Areas

Union City roofs face a unique set of problems. The marine layer rolls in almost every night, leaving roofs damp until mid-morning. That constant moisture wicks into shingle edges and under flashings, slowly eroding the asphalt and causing the granules to flake off. Over years, the protective layer wears away, leaving the mat exposed to UV rays. The shingles then become brittle, crack, and curl at the corners.

Salt air from the bay accelerates corrosion on metal valleys, drip edges, and vent flashings. We see galvanized nails rusting and staining the shingle surface. On flat roofs, standing water from heavy winter rains can seep through tiny pinholes in the membrane, causing rot in the deck below. On older ranch homes, the original cedar shakes have often decayed past the point of repair, especially in the shaded north-facing slopes where moss holds moisture against the wood.

We also deal with storm damage. Pacific storms come through with wind gusts that lift shingles and tear off flashing. A single missing shingle can allow water to penetrate the deck, and by the time you notice a stain on your ceiling, the rot has already spread. That's why we recommend annual inspections for Union City homeowners, especially after a wet winter.