Financial District Roof Coating

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.

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

Pitch and exposure decide it before appearance does. Given inland conditions in Financial District, reflective coverings and real attic ventilation make the biggest difference.

A full replacement in Financial 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.

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

Size, pitch, layer count and deck condition drive the number on any Financial District roof. The line that moves is deck repair, so it belongs in the Financial District quote at a rate per sheet rather than as an allowance.

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

One to three days on a typical Financial District property, depending on size, pitch and how much deck needs replacing. Nothing is left open overnight.