J & M Roofing | Roofing Services in Tucson, AZ 85706

This is extremely common in our climate. Tucson's intense, direct sun heats metal flashing, causing it to expand. When temperatures drop at night, it contracts. This daily expansion and contraction cycle, combined with UV degradation, can warp the metal, break sealants, and cause it to lift from the roof deck or develop stress cracks. It's a key area we inspect and reinforce to prevent leaks.

A proper repair involves more than just caulking the crack. We first remove any compromised sealant and clean the area thoroughly. For minor cracks, we may use a high-grade, UV-resistant roofing cement and a reinforcing fabric mesh. For significant damage, the best long-term solution is often to carefully remove and replace the damaged flashing section with new, properly sized material sealed with a durable, elastomeric sealant designed for our temperature extremes.

Absolutely. Prevention starts with proper installation. During a replacement, we ensure all flashing is fabricated and installed with Tucson's climate in mind. This includes using thicker-gauge metals where appropriate, applying protective coatings to reduce thermal expansion, and installing expansion joints in long runs of flashing. We also pay special attention to sealing techniques, using products with proven flexibility and UV resistance to withstand our harsh sun for years to come.