Desertview Roofing | Roofing Services in Tucson, AZ 85706

In Tucson, our infrequent but intense monsoon rains can turn a clogged roof valley into a major issue. When leaves, gravel, and desert debris block the valley—the critical channel where two roof planes meet—water can back up, seep under shingles, and cause leaks, wood rot, and interior damage. Regular inspection and cleaning of these valleys is essential for desert homes.

The primary cause is our extreme thermal expansion and contraction. Tucson's roofing materials expand dramatically in the summer heat and contract during cooler nights and winters. Over time, this constant movement can loosen the sealant and fasteners holding flashing in place around chimneys, vents, and walls, creating gaps where water can intrude. We use flexible, high-quality sealants and proper installation techniques to combat this.

After monsoon season and in late spring, safely check for visible debris piles in roof valleys from the ground. Also, look for any shiny, bent, or visibly separated metal flashing around protrusions. Inside your attic, watch for water stains or daylight peeking through near these areas. For a thorough assessment, a professional inspection from a local roofer like Desertview can identify early signs of trouble before they become costly repairs.