Showing results 1 - 18 of 18
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A nylon draw band and tensioning tool are used to secure the inner coil of the pre-insulated flexible duct
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A nylon draw band and tensioning tool are used to secure the inner liner of the pre-insulated flexible duct
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After securing the inner coil, cover the draw band and the seam with a generous amount of mastic
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Collars that are specifically made for flexible duct have a raised bead to prevent the duct from slipping off
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Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
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Hand tools for cutting fiber board sheets include a knife, straight edge, and color-coded edge-cutting tools
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Pull the insulation and outer liner of the flex duct over the collar to come in full contact with the liner and insulation of the trunk line or fitting and tape in place
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Right – An insulated space is provided in the home’s attic to house the HVAC equipment.
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Seal all joints and seams in the metal ductwork with mastic before installing insulation
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Seal seams in fiber board ducts with out-clinching staples, UL-181A-approved tape, and mastic
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The tape is covered with mastic to ensure an airtight seal between the duct and the fitting
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To attach the flex duct to a main trunk duct or any other connection, the flex duct is pulled over the connecting collar at least 2 inches past the raised bead, then the insulation is pulled back
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Two pieces of flex duct are spliced together with a metal sleeve, nylon draw bands, mastic, metal tape, and more mastic
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When wrapping metal ducts with insulation allow two inches of overlap and staple along the seam with outward clinching staples