(SHELBYVILLE, Ind., December 18, 2007)-Knauf Insulation today announced the launch of new Knauf Eclipse Air Duct Board. Eclipse is the blackest standard air duct board available on the market today. With visibility minimized at venting points, Eclipse Air Duct Board allows the air duct system to be less noticeable to building occupants.

"Knauf Eclipse Air Duct Board is a high quality, affordable product that will instantly be the product contractors prefer," says Doug Bolen, Commercial/Industrial Marketing Manager for Knauf Insulation. "This product gives the market the product they've been looking for." Knauf uses a unique blackening process coupling a black glass mat with a black surface dye to provide a deeper black color than other standard boards.

Knauf Eclipse Air Duct Board is used in commercial and residential air handling installations as a cost effective alternative to sheet metal systems. It is designed for cooling, heating or dual-temperature service where thermal, acoustical and condensation control are required. Acoustically Eclipse Air Duct Board systems reduce noise generated by air turbulence and mechanical equipment. Knauf Eclipse Air Duct Board is GreenGuard certified as a low emitting product for IAQ peace of mind.

Eclipse has a molded shiplap edge on all thicknesses, which provides easy fabrication by machine or hand, giving a tighter seal and a stronger joint. Knauf Eclipse Air Duct Board's consistent density makes fabrication fast and easy in the shop and on the job site; and helps prevent tenting, which means less hassle when handling.

Knauf Eclipse Air Duct Board is a UL listed rigid fiber glass board faced on one side with a Foil-Scrim-Kraft (FSK) vapor retarder and with the new black lightweight fiber glass mat on the airstream surface. Eclipse is available in two stiffness values-EI-475 and EI-800 and in thicknesses of 1", 1.5" and 2". Both types are available with butt edge or factory molded male-female shiplap edges on all thicknesses. It has a service temperature up to 250°F; air velocity at a maximum of 5000 fpm; and a water vapor transmission rate of less than 0.02 perms. The airstream surface of Knauf Eclipse Air Duct Board is treated with an EPA registered, anti-microbial agent that prevents growth of mold, fungus or bacteria in accordance with ASTM C1071, G21 and G22.

In keeping with its vision of delivering sustainable solutions, all Knauf Insulation products, including Eclipse Air Duct Board, are manufactured to provide energy efficient solutions. Knauf Insulation was the first insulation manufacturer to earn certification by the GREENGUARD Environmental Institute™.