CertainTeed expands Ohio plant

MALVERN, Pa. — CertainTeed is investing $37 million to make its Milan Township, Ohio, plant a flagship of the company’s operations. The upgrades, which are slated for completion in 2020, will allow CertainTeed to produce its own asphalt instead of relying on outside suppliers. The plant’s footprint will grow from 45 to 55 acres, according to the Sandusky (Ohio) Register.