Why Asphalt Shingles Roofs in Phoenix Face Unique Challenges
Phoenix’s desert climate pushes roofing materials to their limit. Constant heat, sunlight, and seasonal storms all take a toll on asphalt shingles—causing them to age faster than they would in cooler parts of the country.
Intense UV Rays
Arizona’s powerful sun dries out the oils in shingles, making them brittle and more likely to crack or lose their protective granules. Lighter-colored, reflective shingles tend to last longer under these conditions.
Rapid Temperature Swings
Day-to-night temperature drops of 30°F or more cause shingles and nails to expand and contract. Over time, this movement loosens fasteners, weakens sealant, and creates small gaps that can let water in.
Monsoon Winds and Dust
Summer storms bring strong gusts that lift shingles and drive dirt under the edges. That dust can grind down the protective surface and wear out adhesives faster.
Overheated Attics
Attic spaces in Phoenix often reach 140°F or higher, which accelerates the breakdown of underlayment and roof decking beneath the shingles. Proper ventilation can make a big difference in reducing this stress.
Because of these factors, a shingle roof that might last 25–30 years elsewhere may only last 15–20 years in Phoenix. Choosing high-quality materials, proper ventilation, and experienced local roofers helps homeowners get the most out of their roof’s lifespan.
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