Tile Roof Leaking? Why Arizona Underlayment Fails Before the Tile Does (and Why El Niño Makes It Urgent)

If you own a tile roof in Phoenix or Tucson, here's something most homeowners don't know: the tile isn't what keeps the water out. The layer underneath does, and in Arizona heat, that layer usually wears out long before the tile.

With forecasters calling for a strong El Niño, which often brings the Southwest a wetter winter, now is the time to check what's under your tile.

Tile vs. underlayment: who's doing the work

Concrete and clay tile is tough. It can last 50 years or more. But tile mostly sheds water and shields the roof from sun. The underlayment, a waterproof layer under the tile, is what actually keeps rain out of your attic.

In Arizona, underlayment takes a beating from extreme attic heat and UV exposure through cracked or slipped tiles. Many older felt underlayments start failing around the 20-year mark. A lot of Valley and Tucson homes built in the 1990s and 2000s are hitting that age right now.

Signs your underlayment is failing

• Leaks or ceiling stains after storms, especially early in the season
• Cracked, slipped or missing tiles (each one exposes underlayment to the sun)
• Your roof is 20+ years old and has never had the underlayment replaced
• Stains or damp spots on the attic side of the roof deck
• Monsoon storms left new leaks this year

Why El Niño matters

Monsoon storms come hard and fast. Winter storms are slower, steadier and longer. Hours of soaking rain find failed underlayment in a way a 30-minute monsoon burst doesn't. If your roof barely made it through monsoon season, a wet winter is the bigger test.

Your options

Repair: replace broken tiles and fix localized leaks. Good for newer roofs with isolated damage.

Lift and relay: remove the tiles, install new underlayment and put the original tiles back. Often the best value when your tile is still in good shape.

Full replacement: new underlayment and new roofing. Makes sense when tiles are brittle or many are broken.

We'll tell you which one your roof actually needs. Not every tile roof needs a full replacement.

Have solar on your tile roof?

If you need underlayment work under a solar array, the panels have to come off first. Empower does both roofing and solar, so one crew handles the removal, the roof and the reinstall, with no finger-pointing between contractors. Once the panels are back on, Empower's Solar Monitoring Plans confirm your system is producing like it should. Basic starts at $14.99/mo.

FAQ

How long does tile roof underlayment last in Arizona? Many older felt underlayments last around 20 to 25 years. Modern synthetic underlayments are built to last longer.

Can you replace underlayment without replacing the tile? Yes. A lift and relay reuses your existing tile if it's in good condition.

Do you serve Tucson and Phoenix? Yes. Empower provides roofing in the Phoenix metro and in Tucson, including Oro Valley, Marana and Sahuarita.

Find out what's under your tile

Book a free pre-storm roof check with Empower. We'll inspect your tile and underlayment and give you an honest recommendation. Call (602) 581-7022 or visit empoweryourhome.com.