K-Flex USA has expanded its insulation options with the addition of 2-inch-thick 25/50-rated R-8 Duct Liner Gray to its product line.

K-Flex USA has expanded its insulation options with the addition of 2-inch-thick 25/50-rated R-8 Duct Liner Gray to its product line. Representatives of K-Flex USA claim the addition will provide more efficient products that meet the R-8 energy requirements of state building codes. R-values designate the thermal resistance value of a material. R-8 equals eight resistance units and is currently required in several state building codes. The new 2-inch thick 25/50-rated product is tested to ASTM E-84 standards for surface burning characteristics of building materials. It also establishes a complete product line from K-Flex for insulating sheet metal ducts in air-handling systems.

K-Flex USA, 100 Nomaco Road, Youngsville, NC 27596; (800) 765-6475;www.kflexusa.com.