Duct Insulation In Attic

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.

Duct insulation in attic. We make your home or building more comfortable in the continental us and canada. Set up your free estimate contact us today. Flexible ductwork comes with different insulation r values. Duct insulation solving condensation heat and cold problems insulation on ducts must protect from condensation radiant heat and cold.

Since burying ducts is simply one of several ways to address the energy waste associated. Test total duct leakage. In last week s blog i discussed the practice of burying attic ducts in deep insulation. Repeat to insulate the remaining ducts.

Install loose fill insulation to cover the ducts and the attic floor to meet or exceed the code required r value for attic insulation. The duct insulation should include a vapor barrier cover. 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.

Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. Use the type of. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. 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. 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. Secure the insulation with short strips of foil tape. Solutions to the attic duct problem.

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. For an added layer of protection you can apply duct mastic to the tape and duct. Prodex total duct insulation insulation radiant barrier vapor barrier all in one product. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value.

Add additional sealant if necessary. Other times insulation may be on the outside. Apply a long strip of foil tape along the seam in the insulation.