Image A floor cavity between the first and second floor can provide a conditioned space for HVAC ducts if the rim joists are insulated and air sealed, if sufficient space is available, and if open-web floor joists are used Publication Date Wed, 01/01/2014 - 12:00
Ducts in Interstitial Floor Framing Description Guide for designing and installing interior ducts in an interstitial floor cavity in new and existing homes.
