How Can Underfloor Ventilation Be Improved? How Do I Reduce Moisture In My Subfloor? Underfloor Air Distribution with the air provide temperature slightly cooler or warmer than the desired space temperature. Displacement ventilation applied as part of an underfloor air distribution system should be installed at a raised floor http://rylangihdu.blogprodesign.com/20328840/obtaining-help-for-methods-of-sub-floor-vents