Roofing in Tucson is tile, parapet, and cooler curbs, tested by monsoon wind more than by a long rainy season. The tiles stay put and look respectable while the felt or synthetic layer underneath turns brittle in the sun. A storm then pushes rain uphill and the ceiling stains in a spot that does not match the leak. Flat roofs with canales and short parapets pond against stucco. A swamp cooler sitting on a curb adds a hole and a vibration the rest of the year, then a leak the week the storms arrive. Foothill houses add slope, complicated valleys, and water that leaves one lot and hits the next.
Do not call this a Phoenix foam-and-heat story with the name swapped, and do not call it a snow roof. Snow is not the design load. Sideways rain is. From the yard, look for stained eaves, tiles in the gravel, and rust or cracks at the cooler pan. Look at the canales and ask whether they discharge away from the wall or down the stucco. Say whether the leak shows up only when the wind has a direction, only when the cooler runs, or on any rain. That sentence saves a wasted diagnosis.
A boot or a curb repair is not a re-roof. A re-roof on tile means the tiles come up, the underlayment is replaced, the flashing at walls is redone, and the tiles go back without a field of cracks from careless walking. Ask what happens if the deck is soft. Ask who repairs stucco at a parapet. Ask about underlayment weight and about how penetrations are flashed, including the cooler if it stays. Ask who pulls the permit and who hauls the debris. Get that scope written down before a slope is stripped.
Foothill roofs and barrio flat roofs should not be bid as if they were the same rectangle. Say which you have, how old you think the covering is, and what the last storm did. Call the number on this page.