Add Insulation To Attic Ducts

This is more expensive and usually requires a contractor but it may be worth the cost especially if you live in a very cold climate.

Add insulation to attic ducts.

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. If you want to cover metal ductwork. Then check on the recommended depth for the cellulose insulation planned for the attic. If your attic has enough insulation and proper air sealing and your home still feels drafty and cold in the winter or too warm in the summer chances are you need to add insulation to the exterior walls.

Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures. You need insulation even around your ducts no matter where you live. When it comes to adding duct insulation your monthly savings in utility bills will soon cover the costs especially if you install the insulation yourself. You can do it yourself for about 500.

The remaining 2 tons of capacity is at least 1 5x oversized for the actual 1 load. The cost and effort to add more insulation is minimal. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. Test total duct leakage.

The duct insulation should include a vapor barrier cover. Add additional sealant if necessary. Pull down stair or ladder. Affix rigid foam insulation to the attic side of the hatch or door.

The problem with uninsulated ducts. For an added layer of protection you can apply duct mastic to the tape and duct. If your rigid metal ductwork has any insulation it may already have enough. If it s uninsulated you should insulated it to at least r 4 to r 8 for dfw.

When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value. Learn more about this important step here. Attic hatch or door. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.

In more cases than not a 3 ton ac with the ducts in the attic has a ton or so of load that s just from the location of the ducts in the attic and the associated duct gains leakage etc. Properly prepare the attic before adding insulation. Insulation isn t only about keeping heat in. Check with your installer or manufacturer s website or bags to find the recommended depth 2.

Mechanically fasten and mastic seal all duct connections. Use the type of. The pros charge 1 500 to 2 000 to do a 1 200 sq ft. Blown in insulation overview.

How much does attic insulation cost. Measure the depth up to the top of the ducts. 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.