Mechanical · M-RW4XD

L.P. Duct Liner Detail

Materials

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A fiberglass or elastomeric duct liner is adhered to the interior of a galvanized iron duct using Miracle PF 96 adhesive applied at one hundred percent coverage. Mechanical fasteners such as Omark Insul-Pins, Duro Dyne metal fasteners, or grip nails are installed using a gripnail air hammer or automatic fastener equipment. Fasteners are spaced a maximum of twelve inches on center and positioned no more than two inches from the edge of the liner. The top and bottom sections of the liner overlap the sides, with all abutting ends butted firmly together and coated with adhesive. Liner material consists of fiberglass for the RT-1 system and elastomeric material for the RT-2 system.

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