HVAC Duct Sealing and the Best Sealants for Minnesota Homes
HVAC duct sealing closes the gaps, seams, and connections in your ductwork so conditioned air reaches your rooms instead of leaking into attics, crawl spaces, and walls. The best sealant for most homes is UL 181B-M listed water-based mastic, backed by foil tape or aerosol sealing for hard-to-reach runs. In west-central Minnesota, where furnaces run […]