Wrapping Attic Ducts

Wrap the insulation around the duct and then pinch the seam closed.

Wrapping attic ducts. Cover any air leaks with metallic foil tape made for sealing ductwork. Additionally wrapping a duct with insulation does virtually nothing to reduce duct leakage. Get it as soon as thu. The two most common ways to insulate ductwork are wrapping the duct in a foil faced blanket.

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. Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal. 4 5 out of. Frost king cf55 foil backed no itch natural cotton duct wrap 12 inch x 1 inch x 15 feet.

Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures. 4 5 out of 5 stars 110. For pricing and availability. 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.

Foam not cheap bubble 24inch x 25ft reflective foam core insulation garage pipe air duct faucet attic roof basement sauna weatherization wrap kit 1 4 thick r8. No air should be able to penetrate the ductwork and the joints are a natural weak point. Or applying spray foam insulation to the outside of the duct. For pricing and availability.

Duct insulation accessories. 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. Secure the insulation with short strips of foil tape. The duct collar should be sealed with duct mastic to prevent air leakage and make an air tight seal.

If you need help deciding which type of insulation you need set up an energy consultation. For an added layer of protection you can apply duct mastic to the tape and duct. Apply a long strip of foil tape along the seam in the insulation. Also make sure to use hvac tape and seal all of the joints between duct segments.