Johns Manville, a Berkshire Hathaway company, is a 153 year old leading manufacturer and marketer of premium-quality building and specialty products. Johns Manville’s complete roofing systems include insulation, fasteners, cover boards, BUR, SBS, APP, TPO, PVC, EPDM and liquid roof membranes. Roofing accessories consist of expansion joint covers, fascias, copings, drains and retrofit drains. Johns Manville’s approach to the roofing industry is “not one system meets all needs but a total system design provides the best coverage”. HW Johns said it best in 1858, “We promise and claim less than others, but shall endeavor as heretofore to furnish the best materials of the kind, and to make every resource available for their improvement”.