Commercial Roof Repair: Costs, Lifespan and Alternatives

We start at the flashings, check the deck from inside the attic, and photograph every elevation. On a San Francisco property we pay particular attention to dried-out underlayment and attic temperature.

Granules in the gutters, curling tabs, repeat stains in the same ceiling after every storm, and soft spots underfoot. In San Francisco, asphalt dries out and sealant pulls back from penetrations years before the field wears through.

Two visits a year: clear valleys and gutters before the rains, then check flashings after the first real storm. In San Francisco that matters most because asphalt dries out and sealant pulls back from penetrations years before the field wears through.

Check the licence, liability cover and workers' compensation, then ask any San Francisco contractor what happens if the deck is worse than expected — and get that answer in writing before the covering comes off.

A full replacement in San Francisco is permitted and inspected through the San Francisco Department of Building Inspection. Small repairs generally are not, but the layer count and assembly are checked on any permitted job.

Yes. San Francisco is about 339 miles from our Santa Monica yard, and we work it alongside Hayes Valley, Tenderloin and South of Market on the same routes.

San Francisco sits in San Francisco County and takes long dry heat, hard thermal cycling and rain that arrives in a few concentrated storms. In practice that means asphalt dries out and sealant pulls back from penetrations years before the field wears through.

In inland conditions, composition shingle runs roughly fifteen to twenty-five years, tile underlayment twenty to twenty-five, and coatings seven to fifteen depending on the system.