Floors Above Unconditioned Spaces: Code Compliance for Basements, Crawlspaces, Cantilevered Floors, and Garages
Understanding Floor Insulation Requirements and Code Compliance Floors above unconditioned spaces—such as basements, vented crawlspaces, cantilevered floors, and garages—are critical components of a building’s thermal envelope. Proper insulation and air sealing are essential to minimize heat loss, prevent cold spots, and enhance energy efficiency. Previous versions of building codes required floor insulation to be in…
