Portola Standing Seam & Metal Roofing

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

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.

We cover Portola across San Francisco County, including Visitacion Valley, Bayview and Bernal Heights, and the rest of the service area listed on the site.

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

Granules in the gutters, curling tabs, repeat stains in the same ceiling after every storm, and soft spots underfoot. In Portola, 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 Portola 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 Portola property, depending on size, pitch and how much deck needs replacing. Nothing is left open overnight.

Portola 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.