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1363 Wet Insulation Below Vents - Insulation Energy Efficiency - Attics
 
1363 Wet Insulation Below Vents - Insulation Energy Efficiency - Attics -

Image Text: Cross section > WIND > snow (or rain) gets sucked in through the windward roof vent > air flow > roof vent > air > roof rafter > insulation > compressed and/or wet insulation (especially noticeable with cellulose insulation) > soffit vents not performing adequately > wall > Note: if there are roof vents only on the windward side, snow and rain are more likely to enter the attic

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INSULATION

The Basics, Air/Vapor Barriers (Vapor Retarders), Venting Roofs, Venting Living Spaces, Attics, Flat and Cathedral Roofs, Walls Above Grade, Basements and Crawlspaces, Floors over Unheated Areas, Ventilation Systems

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