Mast Metal Sales, 13828 Bundysburg Rd, Middlefield, OH 44062, US

Owens Corning is a $5 billion global industry leader with nearly 20,000 employees around the world and with manufacturing, sales and research facilities including joint venture and licensee relationships in more than 30 countries on six continents. Owens is credited with inventing fiberglass and glass fiber insulation more than 50 years ago. Owens Corning glass fiber materials can be found in more than 40,000 end-use applications, including computers, automobiles, telecommunications cables, pipes, boats, appliances, snow skis and aircraft. In addition, the company also manufactures home building systems such as insulation, roofing acoustics, basement finishing and vinyl exteriors. The company has numerous locations, including its facility in Medina, Ohio, which produces roofing products.