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Here at Johns Manville, we build on decades of experience to manufacture commercial roofing, premium-quality insulation and a variety of engineered products for our customers. We are proud to be part of Berkshire Hathaway, one of the most respected companies in the world. Our values of People, Passion, Perform and Protect drive the way we work as we strive to deliver positive and powerful JM Experiences to our employees and to our customers. Our company is based in Denver, Colo., where you will also find our global research and development facilities. With over 7,000 employees and 43 manufacturing and sales locations across North America, Europe and China, we serve customers in over 80 countries. Our employees are united across business functions and work globally with other JM employees.
Arcitell is a manufacturer of patented fiber reinforced polymer panels for residential and commercial siding. We commercialize superior building products...
We don't mind telling you that Guardian is one of the world's largest manufacturers of float glass and fabricated glass products. You should also know that we manufacture and supply the automotive industry with a variety of exterior products. We've also become a significant player in the building materials distribution business and are a major manufacturer of fiberglass insulation. And somewhere along the line, we became one of the world's largest producer of mirrors. Headquartered in Auburn Hills, Michigan, the privately held Guardian group of companies employs 18,000 people worldwide (that's more than 25 countries on five continents) and we value them above all else. In fact, we are very proud of our management structure. It is specifically designed to avoid bureaucratic nonsense and allows the individual to flourish. It is an environment that thrives on the initiative of its people. And it works. Just ask any of our thousands of happy customers.