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You are here: Home Available Documents Research Reports RR-0306: Unvented Roofs, Hot-Humid Climates, and Asphalt Roofing Shingles
 

RR-0306: Unvented Roofs, Hot-Humid Climates, and Asphalt Roofing Shingles

When constructing unvented roofs with asphalt shingles in hot-humid climates, a vapor barrier must be installed between the asphalt shingles and the roof deck.
by Building Science Corporation last modified 2008/10/20