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What is the difference between a vented and unvented attic?

April 26, 2017attic unvented vented

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What is the difference between a vented and unvented attic?

1 Answer

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10 Posted

Unvented (conditioned) attics use air-impermeable insulation as a barrier to prevent moisture condensation on the underside of roof decks. Vented attics minimize condensation by allowing the escape of moisture to the exterior by air flow.