Insulating Air Conditioning Ducts In Attic

Wrap the insulation around the duct and then pinch the seam closed.

Insulating air conditioning ducts in attic.

The condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house. If ducts are located in a crawlspace underneath your house cover the soil to reduce moisture. If they are located in your attic be sure the area is properly insulated and any cracks or holes are sealed. Improperly insulated ductwork and excessive moisture in the air.

I m looking at you mississippi and alabama. Put it in an attic full of blown insulation and you re. If you live in a consistently humid climate a dehumidifier can help keep the air. 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.

Both of these are easily treatable. Keep ducts spaced apart so air can flow between them. Dirty air will still enter your ductwork through the leaks even after you add insulation. Or you live in a state that doesn t require r 8 on ducts in attics.

Repeat to insulate the remaining ducts. One ton of air conditioning equals 12 000 btu hr so this would be almost half a ton 0 44 of cooling load. Either way removing humidity from the air in your attic might be the most cost effective way to handle your problem. Seal the leaks with mastic or mastic tape we follow a highly precise seal and test protocol that identifies all leaky areas and results in.

R 8 duct insulation 5 227 btu hour. Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place. Apply a long strip of foil tape along the seam in the insulation. If you decide to insulate your old ducts just make sure you or your contractor follows this order of operations.

Other times insulation may be on the outside. She asked me to go into the attic to find the roof leaks or where the snow is blowing in through the soffits. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value.

The rigid insulation was saturated from condensation. Flexible ductwork comes with different insulation r values. Secure the insulation with short strips of foil tape. I found instead a vintage 3 ton ac unit with 1 rigid insulation taped all over it and insulated flex duct snaking all over the poorly insulated attic.

Sometimes the insulation is inside the ductwork. At the end of the day there are really only two causes for condensation on ductwork.