Planning tool
Roof‑life estimator for Phoenix heat
Is this a repair year or a replacement year? Choose your roof type, age, color and sun exposure to see a typical remaining life for Valley conditions and the service that fits next.
Short answer
In Phoenix heat, tile roof underlayment typically lasts 20 to 25 years, foam roof coatings 5 to 10 years, asphalt shingles 15 to 20 years, built-up flat roofs 12 to 18 years and metal 35 years or more. Dark colors and full sun shorten those numbers. The estimator below applies them to your roof.
Estimate your roof
The estimate updates as you change each answer.
About 4 years left
Typical life in Valley heat.
This is a planning estimate based on how roofs commonly age in Phoenix heat, not an inspection. A roof that leaks, has slipped or broken tiles, blisters or soft spots needs a look sooner.
Details Call (602) 878-3594The life spans behind the estimate
Typical ranges for Valley roofs, before color and shade adjustments.
| Roof type | Typical life in Phoenix | The part that wears out |
|---|---|---|
| Concrete or clay tile | 20 to 25 years | Felt underlayment beneath the tiles |
| Foam (SPF) | 5 to 10 years per coat | Acrylic or silicone top coat |
| Asphalt shingle | 15 to 20 years | The shingles, faster when dark |
| Built-up or modified flat | 12 to 18 years | Membrane and seams |
| Metal or stone-coated steel | 35 to 45 years | Fasteners, sealant and flashing |
| TPO membrane | 15 to 20 years | Seams and flashing details |
Dark surfaces run hotter and age faster, so the estimate takes about 12 percent off for a dark roof and adds a little for a light or white one. Roofs shaded by trees or a second story for part of the day age a bit more slowly than roofs in full sun from sunrise to sunset.
What the estimate cannot see: a slipped tile that has been letting sun onto the underlayment for years, a foam roof that birds have pecked, a flashing detail that was installed poorly or storm damage from last summer. Any active leak, soft spot or visible damage means the roof needs a look now, whatever the number says. A roof inspection gives you the real answer.
About the estimator
How accurate is the roof-life estimator for my house?
It is a planning estimate built from how each roof type commonly ages in Phoenix heat, adjusted for color and shade. Workmanship, ventilation, foot traffic, storm damage and past repairs all change real life span. Use it to decide whether to budget for a repair or a replacement, then have the roof looked at.
Why does the estimator say tile roofs last only 20 to 25 years?
Concrete and clay tiles themselves often last far longer than that. The estimate is for the felt underlayment beneath them, which is what keeps water out and which commonly wears out at around 20 to 25 years in Valley heat. Replacing it usually means lifting the tiles and re-laying the good ones.
What age should I enter for a foam roof?
Enter the years since the foam was last coated rather than the age of the foam. A well kept foam roof is maintained by recoating, so the coating is the part on a clock. If you do not know when it was last coated, a quick look at how much granule and coating is left tells us.
Want a real answer instead of an estimate?
Call (602) 878-3594 to book an inspection. We walk the roof and tell you what it needs, if anything.