Duct Insulation In Attic

To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct.

Duct insulation in attic.

Use the type of. Secure the insulation with short strips of foil tape. Add additional sealant if necessary. Mechanically fasten and mastic seal all duct connections.

Because the moving air is in the ductwork for only a short period of time it does not need the insulation r value the attic floor requires. Wrap the insulation around the duct and then pinch the seam closed. Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures. In a vented attic this can happen when the duct is in close proximity to conditioned space i e the ceiling and also thermally isolated from the hot attic beneath the ceiling insulation.

In last week s blog i discussed the practice of burying attic ducts in deep insulation. Sometimes the insulation is inside the ductwork. Solutions to the attic duct problem. For an added layer of protection you can apply duct mastic to the tape and duct.

Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. In this case the temperature gradient between supply air and the ceiling can be such that the duct surface could be cooler than the local dew point. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value. Other times insulation may be on the outside.

Repeat to insulate the remaining ducts. When these ducts are exposed to exterior air the plastic jacket never gets cold enough to permit condensation because the hot attic air keeps the plastic jacket warm. The duct insulation should include a vapor barrier cover. One solution to cold heat and condensation you ll be warm in winter cool in summer and dry all the time.

Test total duct leakage. Duct insulation solving condensation heat and cold problems insulation on ducts must protect from condensation radiant heat and cold. Apply a long strip of foil tape along the seam in the insulation. We make your home or building more comfortable in the continental us and canada.

Most attic ducts are insulated flex ducts that is flex ducts with r 6 or r 8 fiberglass insulation along with an exterior polyethylene jacket. Prodex total duct insulation insulation radiant barrier vapor barrier all in one product. Set up your free estimate contact us today.