Roofing in Union City, CA

Fog sits on the roofline here most mornings, and that marine layer never fully dries. On a flat roof, water ponds at the low corner and wicks into the seams. Salt air corrodes fasteners and metal flashing long before the membrane wears out.

Mid-century ranch homes here carry three-tab shingle over thin felt underlayment that has hit end-of-life wear. We pull a test square, check the sheathing for rot, then tell you whether a recover makes sense or a full tear-off is the honest call.

Eichler-style tract homes with flat roofs need different attention. We install TPO or EPDM membrane, self-adhered underlayment at the edges, and fresh sealant at every pipe boot. Clogged scuppers push water back under the drip edge, so we clear gutters and downspouts together.

Newer townhomes sit on tight lots where exhaust vents dump warm, moist air straight onto the roof deck. We reset ridge caps, reseal counter-flashing, and add soffit venting so attic heat escapes instead of cooking the shingles from underneath. Zip codes 94587 and 94588 keep us busy.