Insulating Attic Hvac Ducts

Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures.

Insulating attic hvac ducts.

Use metal flex or fiber board ducts that are insulated to code. Read this before you start thinking about adding insulation to your attic. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. The duct insulation should include a vapor barrier cover.

Department of energy attic insulation improvements combined with air sealing and proper hvac maintenance can cut your heating and cooling energy use by 20 to 50. According to the u s. Purchase duct wrap insulation that complies with the 2009 international energy conservation code iecc standards that specify an r value of 8 for attic ducts and 6 for ducts located anywhere else. 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.

In this video this old house plumbing and heating expert richard trethewey helps a homeowner insulate his ductwork. Check the speed of the blower motor on the furnace. For an added layer of protection you can apply duct mastic to the tape and duct. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value.

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. If necessary switch the wires to reduce the blower to its lowest speed.