INSPECTOR'S
TIP - Nail Pop

The above defect is a roof condition
known as a nail pop. Nail pops are normally minor maintenance
issues only, depending on the number and extent. If not properly
maintained they will however lead to leakage and damage to the inner
attic and ceiling components.
Isolated nail popping is normally the
result of thermal expansion and contraction, particularly in the
summer periods where high temperatures are to be expected within the
attic area. Extensive nail popping however, can be the result of poor
shingle application and major repairs may be needed.
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