Roof Repair in Covina, CA

Covina anchors the eastern end of our map, where the San Gabriel Valley floor runs out toward the hills. Its roofs are the valley's second building wave: ranch houses and later tracts, a large share of them under concrete tile that went on in long rows of near-identical houses in the seventies and eighties, when tile became the tract material of choice across the valley floor.

Concrete tile on a schedule is Covina's whole story, and it is a useful one. Those roofs were installed within a few years of each other over felt with a known appetite for valley heat, and they are arriving at their underlayment years together, street by street. The early leaks look small, a stain after a driven storm, a damp corner in one winter room, because the felt fails at its laps first. The read that serves a Covina owner is slope by slope: which faces have felt worth trusting, and which have quietly finished.

Common Covina roof problems: felt expiring under concrete tile across whole streets, slipped tiles opening felt to direct sun, broken tiles at eaves from ladder and tree work, ranch comp roofs at end of life, flashing at the stucco walls in long hot summers.