Air Duct Sealant

Duct connections to flanges of air distribution system equipment or sheet metal fittings shall be mechanically fastened.

Air duct sealant.

You all have duct work either in your attic or crawlspace or something like that. Drywall foam and fiberglass insulation galvanized steel aluminum masonry and wood. We connect our proven technology to your home or business heating air system to distribute the sealing formula. 3m aluminum foil tape 3340 2 5 x 50 yd 4 0 mil silver hvac sealing and patching hot and cold air ducts fiberglass duct board insulation metal repair 4 7 out of 5 stars 452 16 98 16.

Rated for indoor or outdoor use you can apply this anywhere you have an air leak. Air duct sealing video transcript. The sealant is fiber reinforced and easy to apply by brush gloved hand or putty knife to flex duct duct board and sheet metal air ducts. Sealing air duct plenums takeoffs elbows and vent boots where they connect and sealing the seams per product instructions may help save energy.

Closure systems used with flexible air ducts and flexible air connectors shall comply with ul 181b and shall be marked181b fx for pressure sensitive tape or 181b m for mastic. It dries to a tough flexible and weather resistant seal. Master flow water based air duct sealant helps seal all types of air ducts to reduce the risk of conditioned air leakage. The sealant is fiber reinforced and easy to apply by brush gloved hand or.

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. The mastic duct sealant foil is also uv resistant mold and mildew resistant and will hold up to water moisture most chemicals and any weather conditions. In a typical house however about 20 to 30 percent of the air that moves through the duct system is lost due to leaks holes and poorly connected ducts. It adheres to many surfaces like.