External Duct Insulation
Microlite Standard duct wrap is made from flame attenuated fiberglass. It offers a high tensile strength core for improved handling and easy installation. Microlite Standard is available plain or vinyl-faced, and it can be used in applications where a vapor barrier is not required.

Johns Manville Microlite® Standard is a duct wrap made from flame attenuated glass fibers that delivers a high tensile strength core for improved handling and easy installation. It is available in plain or vinyl faced options and can be used where a vapor barrier is not required. This product provides a solution for a variety of applications that require improved thermal and acoustical performance.

R Value (Vinyl Facing): 3.9 (1.5")
R Value (No Facing): 4.3 (1.5")
Permeance Rating (Vinyl Facing): 1.3

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Available Documents