How To Seal Air Ducts In Attic

Use zip ties to secure any loose ducts to the attic floor.

How to seal air ducts in attic.

Sealing your ductwork can shave 20 off your energy bills. Apply a generous amount of sealant mastic over the thermal leak. Sealing ductwork is an easy diy project you can do this weekend. Attic air sealing benefits.

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. Seal fireplace and furnace holes. Sealing duct leaks can improve the efficiency of your hvac system by around 20. It is also recommended that you have your pipes insulated in both areas.

If you have ducts that aren t sealed you are probably leaking a lot of conditioned air into your attic space. Duct sealing by michael church here and in this video we re going to show you how and why it s very important to air seal the run of the ductwork. You all have duct work either in your attic or crawlspace or something like that. Once we know we use an expanding foam to seal the areas and prevent air transfer.

For larger holes filler material may be needed. Steps to sealing attic air ducts. Locate the source of the thermal leaks by inspecting the ductwork while the air conditioner is running. There is typically a gap between the framing of.

After sealing air ducts in the basement and attic you will find that both areas will become colder. Make sure the duct is secure in place and wait for it to dry. Possibly in an unfinished basement. Air duct sealing video transcript.

While you are in the attic sealing air leaks look for any ductwork that may be up there. I ll show you how to find leaks and seal them in the how to video. If you do not have proper insulation in your attic and basement consider insulating both. The result will be a much more efficient and comfortable home because your hvac system won t need to run as long to get the house to the temperature you want.

Ducts are what distribute heat and air conditioning to the various rooms of your house and often these passages have gaps in their connections allowing the conditioned air to leak out before it reaches the intended room. To seal these openings use caulk or spray foam. Additional air duct sealing tips. Even if you have adequate attic insulation finding and sealing air leaks air leaks will improve insulation performance and make for a much more comfortable and energy efficient home.

The first step of air sealing is testing the attic to identify where the air leaks are.