Johns Manville Diffuser Board is designed for use in the fabrication of HVAC systems, air diffusers and register boxes. The airstream surface features a black-colored surface, which provides a smooth interior surface that offers minimal resistance to air flow. JM diffuser board is available plain or with a tough fire-resistant FSK facing laminated to the exterior surface. JM diffuser board provides excellent thermal and acoustical performance.
Availability: United States
NRC: 0.7 (R4.3)
R-value: 4.3 (1")
Recycle Content: 13%
Shipped with E3 Pallet™ Technology