
Johns Manville Duct Board 1" x 48" x 120' R4.3 Fiberglass 1" 90005696
$983.50
Duct board is rigid fiberglass panel used to fabricate insulated supply plenums, return boxes and duct runs on site, providing the air passage and the insulation in a single material. This range covers 48 in. by 120 in. sheets in 1 in. and 1-1/2 in. thicknesses.
Sheets are listed by thickness, R-value and dimensions so the board can be matched to the insulation level the job specifies and to the plenum or transition being built.













