Mission District TPO Membrane Roofing

Mission District 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.

We start at the flashings, check the deck from inside the attic, and photograph every elevation. On a Mission District 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 Mission District, asphalt dries out and sealant pulls back from penetrations years before the field wears through.

Yes. Low-slope sections on Mission District buildings need a membrane or coating system rather than shingle laid flatter than it is rated for, and they are quoted separately from the pitched roof.

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.

A full replacement in Mission District 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. Claims on Mission District properties turn on documentation taken before anything is tarped or cleared, and we work alongside the adjuster rather than around them.

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