First U.S. Manufacturing Facility.

Roxul USA, Inc., selected Gray to construct its first manufacturing facility in the U.S. Part of the world’s leading producer of stone wool, ROCKWOOL International of Denmark, Roxul USA, Inc., manufactures stone fiber-based insulation made from natural stone and recycled content. The new 458,586 s.f. facility makes the 22nd manufacturing facility for ROCKWOOL worldwide.