Roofing Systems - Defy The Elements

Johns Manville Roofing Systems is dedicated to helping you defy the elements with the most extensive offering of low slope roofing solutions. To construct highly protective, energy efficient and cost effective roofs, an integrated JM system delivers more value than individually purchased components. Tested and proven to work together, the elements of a JM roofing system are designed to meet the specific requirements of each individual building.

Part of our systems approach is the inclusion of technical and customer support as well as strong guarantees which add peace of mind to the value equation. Single-source supply also means single-source responsibility and single-source dependability. For long-term performance look to JM for advanced capabilities in the building sciences.

Comprehensive Roofing Solutions

Our portfolio of roofing systems includes a complete line of single ply, built-up and modified bitumen membranes, including Cool Roof solutions. They are complemented by quality thermal insulations, cover boards, adhesives, cements, roof coatings and specialty roofing products all with the convenience of a single-source provider.

Bituminous Roofing Systems

  • BUR (Built-Up) Roofing
  • APP Modified Bitumen
  • SBS Modified Bitumen

Single Ply Roofing Systems

  • TPO Roofing
  • PVC Roofing
  • EPDM Roofing

Liquid-Applied Systems

  • Liquid Membrane Systems
  • Liquid Flashing Systems

BuiltUp Roofing Membranes (BUR)

With Built-Up roofing systems, the highly reliable waterproof membrane is field fabricated with layers of bitumen, alternating with plies of reinforcing felts. The redundant layers give it exceptional resistance to water and weather. Johns Manville has been a leader in BUR with 150 years of experience. We manufacture a complete line of fiber glass felts, including ply and base felts, and mineral surfaced cap sheets.

Built-Up Roofing System GlasKap CR Cool Roof (4GIC-CR)

When considering cool roof alternatives using a bituminous built-up roofing system, there is no easier solution than JM's GlasKap CR Cool Roof Cap Sheet. GlasKap CR is an improved version of our proven GlasKap sheet, with added reflectivity and emissivity properties that meet CRRC (Cool Roof Rating Council), Title 24 (for California) and LEED (Leadership in Energy and Environmental Design) requirements.