Floors: Above Unconditioned Basement, Vented Crawlspace, Cantilevered Floors, and Floors above Garage, Code Compliance Brief Overview New language in the 2015 IECC allows different installation of insulation in floors over unconditioned spaces.
Air Sealing and Insulating Garage Walls - Code Compliance Brief Overview This brief provides an overview of the 2009 through 2015 IRC/IECC code requirements related to air sealing and insulating attached garage walls.