Partial Roof Replacement in The Mesa

Completely, and it is the usual High Desert pattern. The south and west slopes take the ultraviolet and the afternoon heat; the north slope on the same house can be years behind. Replacing what has gone and leaving what has not is often correct rather than a compromise.

It can, because the steep-slope cool-roof requirement only applies once you replace half the roof or more. Under that line the product question does not arise. Worth measuring properly -- and worth weighing against travel, because two visits out here cost more than two visits in town.

Because the warranty was written for an average American climate and this is not one. Hesperia sees a daily swing that can run forty degrees between afternoon and dawn, all year. Asphalt expands and contracts through that cycle until the mat cannot recover, which is why you see curling and granule loss early here.

More than the brand of shingle. A four-nail minimum passes inspection anywhere in the state; six nails placed correctly in the nailing zone is what survives sustained High Desert wind. It adds very little to a quote, it is invisible once the roof is on, and it is the most common thing to be quietly left out.

Four documented exceptions: an addition under 300 square feet of roofing, an attic radiant barrier, R-20 or better attic insulation, or properly sealed ducts. Out here the insulation route is usually the better buy anyway -- it cuts the cooling load rather than reflecting a fraction of it, on a house that runs air conditioning five months a year.