How To Seal Air Ducts In Attic

Once we know we use an expanding foam to seal the areas and prevent air transfer.

How to seal air ducts in attic.

Seal fireplace and furnace holes. 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. You all have duct work either in your attic or crawlspace or something like that. Locate the source of the thermal leaks by inspecting the ductwork while the air conditioner is running.

Possibly in an unfinished basement. It is also recommended that you have your pipes insulated in both areas. Most homeowners don t think about sealing the air ducts of their home but the process is crucial to keeping your house energy efficient. Air duct sealing video transcript.

Use zip ties to secure any loose ducts to the attic floor. For larger holes filler material may be needed. The first step of air sealing is testing the attic to identify where the air leaks are. If you do not have proper insulation in your attic and basement consider insulating both.

To seal these openings use caulk or spray foam. Sealing duct leaks can improve the efficiency of your hvac system by around 20. Sealing ductwork is an easy diy project you can do this weekend. 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.

If you have ducts that aren t sealed you are probably leaking a lot of conditioned air into your attic space. I ll show you how to find leaks and seal them in the how to video. After sealing air ducts in the basement and attic you will find that both areas will become colder. Apply a generous amount of sealant mastic over the thermal leak.

Make sure the duct is secure in place and wait for it to dry. 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. Sealing your ductwork can shave 20 off your energy bills. 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.

There is typically a gap between the framing of. Here are some of the substantial benefits you will enjoy after spending a day or two sealing attic air leaks. Additional air duct sealing tips. 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.

Attic air sealing benefits.