TPO Membrane: Costs, Lifespan and Alternatives

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.

About 337 miles from our Santa Monica yard, so work in Dogpatch is planned as a scheduled trip rather than a same-day call, with planned work booked around the weather.

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

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

Dogpatch 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.

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

Yes. Dogpatch is about 337 miles from our Santa Monica yard, and we work it alongside Potrero Hill, Mission Bay and Mission District on the same routes.