Roof costs / Foam
Foam Roof Cost, Lifespan & Care in Arizona
Spray polyurethane foam is everywhere on Arizona flat roofs. It performs well and is repairable, but only if you keep up with the recoats.
What will a foam roof cost to replace?
Typical Arizona range: $6.50 to $10.00 per square foot (general estimate, not a quote). Enter your roof's size for a ballpark:
Your real number comes from a free on-site inspection. Every roof differs by pitch, layers, and hidden damage.
How long does a foam roof last?
15 to 25+ years (with maintenance). A foam roof can last decades, but only if it is recoated roughly every 5 years. The foam itself is durable; the protective coating on top is what the sun destroys. Miss the recoats and the lifespan drops fast.
Why foam roofs go bad
- Missed recoats, the #1 cause. Once UV burns through the coating, the foam underneath degrades.
- Ponding water on low spots that never fully drains.
- Punctures from foot traffic, dropped tools, or HVAC work.
- Cracks and pinholes that let monsoon rain seep in.
Why you should get it checked
The damage that costs you the most is the kind you can't see from the ground: the underlayment, the flashing, a slow leak in the decking. A free inspection catches it while it's still a cheap fix, before a monsoon turns it into an interior repair.
How to care for a foam roof
- Recoat roughly every 5 years, this is the single most important thing.
- Keep drains and scuppers clear so water never ponds.
- Limit foot traffic and have any punctures sealed quickly.
- Get an annual look, foam problems are cheap to fix early and expensive to ignore.
Common questions
Is a foam roof good for Arizona?
Yes, it reflects heat well and seals flat roofs effectively. The trade-off is that it needs a recoat about every 5 years to hit its full lifespan.
My foam roof is old, do I need a full replacement?
Not always. If the foam is intact, a recoat can buy years. If it has degraded or is leaking, you may need new foam. A free inspection sorts out which.
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