CertainTeed Corp. announced it has secured third-party GreenCircle certification for 20 of its ceilings products. In addition, the company also unveiled new, more environmentally friendly packaging for its ceilings products.

GreenCircle certification consists of a comprehensive audit that verifies the manufacturing process and recycled material use, as well as a thorough review of the specifications and actual recipes for the products produced.

Sustainable Solutions Inc., an independent sustainability consulting firm, conducted the certification process through a rigorous analysis of the recycled content of CertainTeed Ceilings products-such as Adagio, Baroque and Symphony-that are manufactured at the company’s plants in L’Anse, Mich., and Plymouth, Wis. The certified recycled content of the products reviewed ranges from 3 to 72 percent. W&C