Question: You inspect a 4 - year - old asphalt shingle roof. It seems well insulated and the attic is properly ventilated. Roughly 2 5 percent
You inspect a yearold asphalt shingle roof. It seems well insulated and the attic is properly ventilated. Roughly percent of shingles show irregular cracks and bubbles in the surface. You report
the shingles are suffering freezethaw damage
there has been excessive foot traffic on the roof
this is a common cosmetic condition that does nothffect performance or life expectancy
there is a possible manufacturing defect and life expectancy may be shortened
this is a result of expansion and contraction of waferboard sheathing as a result of changes in humidity
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