Sealing Ac Ducts In Attic

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Sealing ac ducts in attic.

Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. The other consideration here is that we re not only sealing the air in but the dust out. Apply a generous amount of sealant mastic over the thermal leak. Air sealing your ducts is cheap and easy and it save s a lot of money.

To seal ductwork from the inside. When the hot humid attic air contacts the cold duct or the cold duct boot the moisture in the air condenses on the cold surface just like the condensation that happens on a cold can of beer. Snap a plastic cap onto the duct end to keep the insulation from snagging then slip the pre formed piece over the duct. Possibly in an unfinished basement.

Air duct sealing video transcript. Use zip ties to secure any loose ducts to the attic floor. Well if they re not properly sealed. 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. The air in your vented attic is hot and humid just like all outdoor air in florida. Make sure the duct is secure in place and wait for it to dry. Using a duct sealant called mastic is the professionals choice.

Gently pull the insulation over the entire length of duct. Locate the source of the thermal leaks by inspecting the ductwork while the air conditioner is running. In fact leaky ducts can result in the loss of 20 to 30 percent of the air that runs through your hvac system according to energy star. After sealing air ducts in the basement and attic you will find that both areas will become colder.

Steps to sealing attic air ducts. Seal both the supply and the return air ducts. Set up your free estimate contact us today. Sealing ductwork from the inside out is a much more complicated process and will likely require hiring a professional.

Duct leakage occurs when the conditioned air in a home escapes your duct system through holes loosely connected ducts or improperly sealed duct connections. If you do not have proper insulation in your attic and basement consider insulating both. Additional air duct sealing tips.