Thermal cracking is cracking caused or worsened by temperature movement, expansion, contraction, and material aging.
Why It Matters
Roofing materials experience heat, cold, sun, and seasonal movement. Over time, that movement can make brittle materials crack.
Common Problems
Common confusion includes mistaking thermal cracking for hail damage, overlooking age-related brittleness, and assuming all cracks have the same cause.
Building Codes & Industry Standards
Thermal cracking is a condition observation. Repairs or replacement should follow manufacturer instructions and applicable code requirements.
Exterior Echelon Notes
Exterior Echelon evaluates cracking in context, including roof age, material type, weathering, impact evidence, and overall roof condition.
