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1367 Ducts in Attics - Insulation Energy Efficiency - Attics
 
1367 Ducts in Attics - Insulation Energy Efficiency - Attics -

Image Text: Cross section > roof rafter > roof vent > insulation > ceiling joist > duct > a disconnected duct can cause heat loss and condensation in the attic and condensation in the ductwork > soffit vent > wall > warm, moist air will condense in un-insulated heating ducts in winter > air conditioning ducts should have their air/vapor barrier on the outside > for heating ducts, the duct itself serves as the air/vapor barrier

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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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