Wrapping Attic Ducts

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Wrapping attic ducts.

Also make sure to use hvac tape and seal all of the joints between duct segments. No air should be able to penetrate the ductwork and the joints are a natural weak point. Frost king cf55 foil backed no itch natural cotton duct wrap 12 inch x 1 inch x 15 feet. Get it as soon as thu.

The insulation you use to wrap your ducts should leave no gaps and be at least two inches thick to work effectively at reducing or eliminating condensation on ductwork. Secure the insulation with short strips of foil tape. For pricing and availability. Duct insulation accessories.

The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago. Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal. Cover any air leaks with metallic foil tape made for sealing ductwork. Apply a long strip of foil tape along the seam in the insulation.

For pricing and availability. Reflectix r 21 100 sq ft unfaced reflective roll insulation 48 in w x 25 ft l item 13358. It s like wrapping a leaky pipe with a rag even if it slows down the flow it still will not completely stop a water leak. 4 5 out of.

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. Wrap the insulation around the duct and then pinch the seam closed. The duct collar should be sealed with duct mastic to prevent air leakage and make an air tight seal. For an added layer of protection you can apply duct mastic to the tape and duct.

Additionally wrapping a duct with insulation does virtually nothing to reduce duct leakage. The two most common ways to insulate ductwork are wrapping the duct in a foil faced blanket. If you need help deciding which type of insulation you need set up an energy consultation. Ted also has inherited a powered attic ventilator.