Sealing Ac Ducts In Attic

Duct leakage occurs when the conditioned air in a home escapes your duct system through holes loosely connected ducts or improperly sealed duct connections.

Sealing ac ducts in attic.

Snap a plastic cap onto the duct end to keep the insulation from snagging then slip the pre formed piece over the duct. Attic systems can help you improve your home s efficiency and comfort with attic insulation air sealing duct work solutions radiant barriers and more. Sealing ductwork from the inside out is a much more complicated process and will likely require hiring a professional. Make sure the duct is secure in place and wait for it to dry.

It is also recommended that you have your pipes insulated in both areas. To seal ductwork from the inside. Use zip ties to secure any loose ducts to the attic floor. Possibly in an unfinished basement.

After sealing air ducts in the basement and attic you will find that both areas will become colder. Return air duct sucks air in so sealing them keeps smelly basement air and or attic dust from creeping into our air supply also. Apply a generous amount of sealant mastic over the thermal leak. The other consideration here is that we re not only sealing the air in but the dust out.

The air in your vented attic is hot and humid just like all outdoor air in florida. You all have duct work either in your attic or crawlspace or something like that. Using a duct sealant called mastic is the professionals choice. Locate the source of the thermal leaks by inspecting the ductwork while the air conditioner is running.

Steps to sealing attic air ducts. Air duct sealing video transcript. If you do not have proper insulation in your attic and basement consider insulating both. 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.

Additional air duct sealing tips. Seal both the supply and the return air ducts. 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. Air sealing your ducts is cheap and easy and it save s a lot of money.

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. Set up your free estimate contact us today. Well if they re not properly sealed.