Insulation Manufacturers Used Almost 5 Billion Pounds of Recycled Materials in the Production of Fiber Glass and Slag Wool Insulation

ALEXENDRIA, Va., Sep 18, 2008 (BUSINESS WIRE) -- The North American Insulation Manufacturers Association (NAIMA) announced the results of a recent survey of its members' use of pre- and post-consumer recycled materials in their insulation products during 2006/2007. The survey includes data from both U.S. and Canadian manufacturing facilities.

According to the survey, U.S. manufacturers used almost 4.2 billion pounds of recycled materials in the production of residential, commercial, industrial, and air handling thermal and acoustical insulation. This represents an almost 62% increase over 2005. Use of recycled glass rose by 107%, and use of reclaimed slag by 55.5%. Since the Industry's recycling program began in 1992, NAIMA members' plants have diverted almost 33 billion pounds of recycled materials from the waste stream.

The survey showed NAIMA Canada members together utilized 593 million pounds of recycled glass and more than 176 million pounds of slag in the production of thermal and acoustical insulation. This represents an increase of 66% and 129% respectively over 2005.

"NAIMA members are committed to preserving the environment by using recycled materials to produce energy-saving insulation products that improve a building's energy efficiency and minimize environmental impact," said Ken Mentzer, president and CEO of NAIMA. "Fiber glass, rock wool and slag wool insulation are some of the best choices available for residential and commercial green building."

While recycled content is just one indicator of a product's environmental impact, the recent survey results illustrate the significant impact that industry can affect through the conscientious use of materials.

For more information about the environmental benefits of fiber glass, rock wool and slag wool, visit

About NAIMA
NAIMA is the association for North American manufacturers of fiber glass, rock wool, and slag wool insulation products. Its role is to promote energy efficiency and environmental preservation through the use of fiber glass, rock wool, and slag wool insulation, and to encourage the safe production and use of these materials.