CertainTeed Corp. has amplified its current Ultra-Duct Gold duct board by adding an industry-preferred black-mat facing, which the company claims will provide improved aesthetics for building occupants. Like its predecessor Ultra-Duct Gold, Ultra-Duct Black duct board is a rigid board designed for fabrication into supply and return-air HVAC ductwork that is much lighter in weight and provides a cost alternative to bare sheet metal duct systems. CertainTeed also says that its new Ultra-Duct Black provides excellent thermal and acoustical performance, and features an airstream surface that serves as a barrier against infiltration of dust and dirt into the insulation. The product is composed of resin-bonded glass fibers with a reinforced foil laminate air barrier vapor retarder facing applied to the outside surface and a fiberglass textile mat bonded to the airstream surface. The product is capable of absorbing unwanted crosstalk, equipment and air-rush noise.

CertainTeed Corp., P.O. Box 860, 750 E. Swedesford Road, Valley Forge, PA 19482; (610) 341-7000; fax (610) 341-7777; www.certainteed.com.