Alta Loma and Etiwanda wind
Homes up near the foothills take the hardest hits when the Santa Ana and canyon winds blow. Ridge and hip tiles are set in mortar or on nailers, and both loosen over time. Once a ridge tile moves, rain follows it straight into the attic.
After a big wind, look at the roof from the street. Tiles out of line, pieces in the yard or a gap along the ridge are worth a call before the next storm, not after.
Tracts from the 80s and 90s
Most of the tile tracts south of Base Line were built with 30-pound felt under the tile. That felt dries out and cracks in our summer heat after 20 to 30 years. We see it most at the eaves, in valleys and around skylights. A re-lay with modern underlayment is often the right answer, and it reuses your tile.
HOA streets
Many Rancho neighborhoods have an HOA that approves roof color and material. If you are replacing tile or switching material, check the HOA rules first. Your estimate lists the exact product so you can send it to the board.