Modified Bitumen (MB) roofing is an asphalt-based, close cousin of the Built-up-Roof (BUR) designed for buildings with low-slope or "flat" roof structures.

Engineered modified bitumen roofing membranes originated in Europe in the mid 1960's and have been used successfully in the United States and Canada since approximately 1975.

Modified Bitumen Roofing Systems are designed to withstand harsh exposure to extreme environmental elements. With five layers of protection, it's one of the most trusted flat roofing systems used in the industry today.

• Proven track record of performance
• Superior waterproofing characteristics
• Broad range of application methods
• Wide choice of top-surfacing, including "Cool Roofing" options
• With insulation, provides an even better-performing building component
• High tensile-strength
• Available as part of a fire, wind, and/or hail rated roofing system
• Competitive life-cycle cost
• Available with flame-free and VOC-free installation
• Long-term warranties are available with many MB systems