Sealing Ductwork In Attic

Steps to sealing attic air ducts.

Sealing ductwork in attic.

I ll show you how to find leaks and seal them in the how to video. Gently pull the insulation over the entire length of duct. We make your home or building more comfortable in the continental us and canada. Snap a plastic cap onto the duct end to keep the insulation from snagging then slip the pre formed piece over the duct.

Apply a generous amount of sealant mastic over the thermal leak. It s easy to overlook electrical wires ducts pipes and vents in the attic but the openings around these are holes can compromise the air sealing of your attic. It was new when the ac was put in 7 years ago. The attic ductwork is flex duct work.

Seal fireplace and furnace holes. Sealing your ductwork can shave 20 off your energy bills. Locate the source of the thermal leaks by inspecting the ductwork while the air conditioner is running. Sealing ductwork from the inside out is a much more complicated process and will likely require hiring a professional.

To seal ductwork from the inside. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water. Make sure the duct is secure in place and wait for it to dry. For larger holes filler material may be needed.

Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. To seal these openings use caulk or spray foam. Seal attic floor holes. Use zip ties to secure any loose ducts to the attic floor.