Summer Heat Damage on Shingles
Summer temperatures that regularly exceed 100°F accelerate UV breakdown of the granule layer bonded to the fiberglass mat beneath. Once granules shed, the exposed mat cracks, tabs curl, and moisture reaches the roof deck, turning a surface repair into a full roof replacement. Low-pitched roofs in the 2:12 to 4:12 range absorb and hold more radiant heat than steeper planes, and older ranch homes with these shallow pitches see the fastest granule loss. Our technicians use drone inspections to measure that depletion against manufacturer-specified replacement thresholds before deck damage sets in.



