Resources
Products
Diffuser Board
Diffuser Board
![](/etc.clientlibs/jm/clientlibs/clientlib-all/resources/images/ProductOpenArrow.png)
![](/content/dam/jm/global/en/hvac-insulation/duct-board/diffuser-board/Diffuser_Board_142x87.jpg)
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: 11%
Shipped with E3 Pallet™ Technology
![Diffuser_Board_700x467 Diffuser_Board_700x467](/content/experience-fragments/jm/products/en/hvac/duct_board/diffuser-board/diffuser-board/_jcr_content/root/xfproductview/1/xftabcontent/rightOne/image.img.jpg/jm)