External Duct Insulation
To provide sheet metal ducts with more thermal insulation, Johns Manville fiber
glass external duct wraps come in a variety of sizes, thicknesses and with or without
facings for vapor retardation. All have a high tensile strength yet are easy to
manipulate, cut to size and install. They provide greater energy efficiency and
more consistent comfort for residential occupants.
Microlite® EQ Formaldehyde-free™ duct wrap insulation is a lightweight, highly resilient, blanket-type thermal and acoustical insulation made of glass fibers, bonded with a thermoset resin.
Microlite® XG™ Formaldehyde-free™ duct wrap insulation is a light weight, highly resilient, blanket-type thermal and acoustical insulation made of glass fibers, bonded with a white, formaldehyde-free resin.
Manufactured with a unique flame attenuated fiberizing technology, Microlite® Standard duct wrap products have high tensile strength and are available in various densities, widths, thicknesses and roll lengths and with a vinyl facing option.
800 Series Spin-Glas duct and equipment insulation is manufactured from inorganic glass fibers bonded together with thermosetting resin. 800 Series Spin-Glas is available plain or faced in a variety of densities for use on systems which operate up to 450°F (232°C).