Insulating Attic Hvac Ducts
Read this before you start thinking about adding insulation to your attic.
Insulating attic hvac ducts. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. Use metal flex or fiber board ducts that are insulated to code. Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value.
In this video this old house plumbing and heating expert richard trethewey helps a homeowner insulate his ductwork. Air duct cleaning los angeles is here to provide you with residential commercial air duct and hvac system cleaning services attic cleaning and insulation removal and replacement. Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place. When hvac ducts are installed in a vented attic in a dry climate bury the ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space.
Press a continuous strip of foil tape to all longitudinal seams along straight runs of duct. For an added layer of protection you can apply duct mastic to the tape and duct. According to the u s. Call our office today for more information.
The duct insulation should include a vapor barrier cover. Check the speed of the blower motor on the furnace.