Air seal around all duct shafts and flues installed through ceilings, walls, or flooring to keep conditioned air from leaking into unconditioned space.
Display Image: ES_TESRC_5.1.1_PG127_228a_102811_0.jpg
Organization(s):
EPA
Guide describing details that serve as a visual reference for each of the line items in the Thermal Enclosure System Rater Checklist.