Asphalt Shingle: Costs, Lifespan and Alternatives

In coastal 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.

Granules in the gutters, curling tabs, repeat stains in the same ceiling after every storm, and soft spots underfoot. In Presidio, fasteners and flashing corrode before the covering does, so fixing specification matters more here than material choice.

We cover Presidio across San Francisco County, including Richmond District, Sea Cliff and Pacific 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 Presidio that matters most because fasteners and flashing corrode before the covering does, so fixing specification matters more here than material choice.

Repair makes sense on a Presidio roof with life left and one localised failure. Once the covering is past its service life, repairs buy months and a replacement buys decades.

A full replacement in Presidio 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.

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

We start at the flashings, check the deck from inside the attic, and photograph every elevation. On a Presidio property we pay particular attention to corroded fixings and lifted edge metal.