Air ducts are used to distribute air through out a building, or to exhaust air outside of a building. the most common are: sheet metal, fiberglass lined, fiberboard, and flex-line air ducts. sheet metal air ducts the most common type of ridged air duct is constructed of galvanized steel or aluminum.. Fiber board used for the fabrication of supply and return air duct work for hvac systems is constructed of resin-bonded strands of glass fibers (e.g., fiberglass) that are formed into flat sheets, typically 4 foot wide by 10 foot long or 4 foot wide by 8 foot long; it typically comes in thicknesses of 1, 1.5, and 2 inches.. It’s probably fiberboard. kim: then the duct work goes over to the left to hook into the cold-air return, which looks like a big box that’s built into the wall. so i’m not really sure what that is, like just a big cold-air return. anyway, so that’s also made – so it goes – the duct work goes to the loft and it’s about 6 inches thick..
Share this article fiberboard air ducts fiberboard air ducts are constructed with boards of compressed resin bonded inorganic glass fibers. they have a foil face on the outside that serves as the air barrier and water vapor retarder. the interior of fiberboard air duct is sealed to prevent fiberglass fibers from entering the air stream.. Fiberboard duct cleaning michigan amistee provides air duct cleaning to different kinds of ductwork, including fiberglass duct board, or fiberboard. within the walls of your home is a maze of ductwork that provides air to every area of your residence.. Fiberboard air duct also provide acoustical and thermal benefits, and are typically the most inexpensive air duct systems to install. flexible air ducts flexible air ducts are constructed with a spring steel wire helix, encapsulated in a 2-ply, polymer plastic..
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