Duct Insulation In Attic

Mechanically fasten and mastic seal all duct connections.

Duct insulation in attic.

Install loose fill insulation to cover the ducts and the attic floor to meet or exceed the code required r value for attic insulation. Duct insulation solving condensation heat and cold problems insulation on ducts must protect from condensation radiant heat and cold. Flexible ductwork comes with different insulation r values. We make your home or building more comfortable in the continental us and canada.

Since burying ducts is simply one of several ways to address the energy waste associated. Other times insulation may be on the outside. Add additional sealant if necessary. The duct insulation should include a vapor barrier cover.

Solutions to the attic duct problem. Use the type of. One solution to cold heat and condensation you ll be warm in winter cool in summer and dry all the time. 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.

Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures. 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. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. Repeat to insulate the remaining ducts.

Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. 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. In last week s blog i discussed the practice of burying attic ducts in deep insulation.

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. Test total duct leakage. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value. Prodex total duct insulation insulation radiant barrier vapor barrier all in one product.

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. Sometimes the insulation is inside the ductwork. Set up your free estimate contact us today.