External Duct Insulation
Formaldehyde-free® fiberglass, blanket-type duct wrap with FSK facing. (Service temp: 250°F)

Microlite® FSK Formaldehyde-free™ duct wrap offers superior thermal performance and condensation control in a lightweight, blanket-type insulation with an FSK facing. It is recommended for HVAC system exteriors or surfaces where design parameters prohibit the use of liner or board. Installing contractors prefer Microlite's binder for many reasons, including improved handling, easier cutting and less dust. Our manufacturing process ensures consistency during production, which results in reliable product quality.

R Value: 4.2 (1.5")
Permeance Rating (Facing): 0.02
Recycle Content: 24%
Greenguard: Gold

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