Johns Manville

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Founded in 1858, Johns Manville is one of the leading manufacturers and marketers of insulation and roofing products for commercial, industrial and residential applications. The company provides a range of insulation materials for construction and retrofit projects. It offers a variety of Formaldehyde-free insulation products, including ComfortTherm, EasyFit and Attic Protector. Johns Manville specializes in thermal and sound control batts, rolls and fiberglass insulation products. The company has fasteners, cement and coatings available in various specifications. It also features roof boards and decks, vapor retarders and plates in several configurations. Johns Manville provides glass textile wall coverings and liners, fiberglass reinforcements and roofing underlayments. The company additionally offers mats and microfiber, fabric and filtration products. It is a part of Berkshire Hathaway Company, which provides insurance and financial services to its customers. Johns Manville supplies products of several brands, such as Permacote, Flex-Glas, Valulite and HandiPak. Headquartered in Denver, the company maintains a location in Richmond, Va.