Johns Manville SuperDuct® RC duct board is used to fabricate ducts for commercial and residential construction when superior performance is required for more demanding applications. Its airstream surface features a black glass mat coated with our proprietary Permacote® acrylic coating that is durable, provides improved water repellency, enhanced cleanability and added product protection against microbial growth. Super Duct RC provides superior acoustical performance, a higher velocity rating and is easy to fabricate for faster installation. Super Duct RC contributes to a healthier, more comfortable indoor environment and promotes consistent temperatures for less wasted energy.
We build environmentsâ„¢. For more than 150 years, Johns Manville has focused on developing materials to make diverse environments stronger, more durable, and more energy efficient and comfortable. We manufacture premium-quality building and mechanical insulation, commercial roofing, glass fibers and nonwoven materials for commercial, industrial and residential applications. JM products are used in a wide variety of industries including building products, aerospace, automotive and transportation, filtration, commercial interiors, waterproofing and wind energy.
Through our 7,000 global employees, JM provides products to more than 85 countries and operates 45 manufacturing facilities in North America, Europe, and China. Since 1988, JM's global headquarters has been located in downtown Denver.