Why roof area differs from floor area
A house’s floor area is useful for describing living space. It is an incomplete measure of the roof above it. Slope, overhangs, garages and additions change the surface that needs covering.
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These articles develop a specific roof question, with service pages and evergreen tools ready when you need to act.
Roofing articles
What wet insulation changes on a commercial roof
The visible opening on a commercial membrane can be smaller than the area affected beneath it. Water can spread into insulation, which changes whether another surface repair or coating is suitable.
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Why a chimney leak can return after caulking
A bead of caulk can close a visible gap while leaving the water path beneath it unchanged. A chimney intersects both the roof and masonry, so the same interior symptom can come from more than one place.
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