Press a continuous strip of foil tape to all longitudinal seams along straight runs of duct.
Insulating attic hvac ducts.
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.
Use metal flex or fiber board ducts that are insulated to code.
Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.
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Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place.
The duct insulation should include a vapor barrier cover.
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.
Check the speed of the blower motor on the furnace.
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.
For an added layer of protection you can apply duct mastic to the tape and duct.
If necessary switch the wires to reduce the blower to its lowest speed.
In this video this old house plumbing and heating expert richard trethewey helps a homeowner insulate his ductwork.
Read this before you start thinking about adding insulation to your attic.