Sealing Ductwork In Attic

Sealing ductwork is an easy diy project you can do this weekend.
Sealing ductwork in attic. For larger holes filler material may be needed. 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. We make your home or building more comfortable in the continental us and canada.
Set up your free estimate contact us today. Use zip ties to secure any loose ducts to the attic floor. Gently pull the insulation over the entire length of duct. Apply a generous amount of sealant mastic over the thermal leak.
Snap a plastic cap onto the duct end to keep the insulation from snagging then slip the pre formed piece over the duct. 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. I ll show you how to find leaks and seal them in the how to video. Locate the source of the thermal leaks by inspecting the ductwork while the air conditioner is running.
The attic ductwork is flex duct work. Make sure the duct is secure in place and wait for it to dry. 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. Steps to sealing attic air ducts.
To seal these openings use caulk or spray foam. It was new when the ac was put in 7 years ago. I called out the original hvac company and they took a look and said they saw no water. Sealing your ductwork can shave 20 off your energy bills.