Johns Manville Duct Board products provide an attractive alternative to traditional
sheet metal ducts, with benefits for both the builder and residential occupants.
The advantages of fiber glass ducts in a residential setting include:
- better indoor air quality
- accurate temperature control, less wasted energy
- resistance to dust and dirt
- quiet operation
- resistance to microbial growth
- resistance to condensation
These installer friendly boards have smooth surfaces and can be fabricated easily
for faster installation.
SuperDuct® RC Air Duct Board is made from strong, resilient glass fibers bonded with a thermosetting resin. Male/female joints are factory made on the transverse edges of each board. A tough FSK (foil-scrim-kraft) facing is laminated to the exterior surface of the board.
Mat-Faced Micro-Aire® Duct Board is produced from durable glass fibers, bonded with a thermosetting resin. The airstream side of Mat-Faced Micro-Aire Duct Board features a fiber glass mat for use at velocities up to 5,000 fpm (25.4 m/sec).
Micro-Aire Duct Board Type LP (low pressure) is produced from durable glass fibers, bonded with a thermosetting resin. Type LP Board offers excellent thermal and acoustical benefits in air distribution systems.
Diffuser Board is a 4 pcf density board made from strong, resilient glass fibers bonded with a thermosetting resin. The airstream surface of the Diffuser Board features a black coated surface that minimizes visibility of the board at the diffuser and register boxes.