Best Way To Insulate Heating Ducts In Attic

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

Best way to insulate heating ducts in attic.

Secure the insulation with short strips of foil tape. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. Ted has more than a few cobwebs in his attic. How to insulate the ductwork.

It is best to work with an hvac professional who can make sure you are choosing the right insulation and installing it properly. Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well. The unconditioned space also houses his hvac system. If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.

When insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value. For diy attic insulation you ve got two choices. Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Determining the right r value.

Made from 1 to 2 inch thick sheets of rigid glass fiber and coated with an aluminum laminate for a moisture air barrier duct board comes in. Insulation is rated in terms of its thermal resistance. Our heating and ac ducts are 100 within the thermal envelope in the floor trusses above our insulated basement. Duct liner isn t generally a diy installation and if your ducts already have liner you don t need to insulate the exterior.

Duct board much like the duct liner is also a fiberglass product. Repeat to insulate the remaining ducts. But our erv ducts stand alone system not tied in w heat pump and 2 jumper ducts for pressure balancing from bedrooms are suspended above the insulation in our vented attic. Both can be added to uninsulated attics or layered over existing material.

The reflective roof already relieves a considerable heat load off the existing ducts so air sealing and better insulation will be icing on the cake for them. Use the type of. There are a couple of steps to insulating ductwork. In my case it is not practical to get my ducts out of the attic.

Loose fill or batt the common term for blanket insulation. My next effort with those ducts is to air seal them the best i can and replace the 56 year old insulation with r6 or better. Don t use standard cloth duct tape on hvac ductwork since the adhesive won t hold up to extreme temperatures. Before insulating seal any air leaks and make roof and other necessary repairs.