UV Degradation and Thermal Cycling
Summer highs near 94°F, combined with the elevated UV intensity common at foothill elevations, accelerate asphalt shingle granule oxidation faster than valley-floor properties experience. Repeated thermal cycling opens seams in underlayment and ridge cap assemblies over successive seasons. Our technicians use drone inspections to catch granule loss, blistering, and seam separation before water infiltration reaches the roof deck.



