Duct Insulation In Attic

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.

Duct insulation in attic.

Apply a long strip of foil tape along the seam in the insulation. You can mix the type and material of insulation too. Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. Duct insulation solving condensation heat and cold problems insulation on ducts must protect from condensation radiant heat and cold.

Add additional sealant if necessary. Insulation ratings can be improved by adding more layers of insulation. Make sure your home is properly insulated in all these locations. Secure the insulation with short strips of foil tape.

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. We make your home or building more comfortable in the continental us and canada. 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. Install loose fill insulation to cover the ducts and the attic floor to meet or exceed the code required r value for attic insulation.

For pricing and availability. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. Dow froth pak 200 sealant foam insulation kit. 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.

Set up your free estimate contact us today. Test total duct leakage. 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. The ideal attic insulation r value is different than the ideal wall insulation r value.

Sometimes the insulation is inside the ductwork. 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. Reflectix r 21 400. 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. For pricing and availability. Wrap the insulation around the duct and then pinch the seam closed. Achieving greater r values in attics.

Ted also has inherited a powered attic ventilator. Other times insulation may be on the outside. Duct insulation accessories. Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal.

Flexible ductwork comes with different insulation r values.