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A modified bitumen roof (MBR), also known as a bitumen roof, is a roofing system designed for flat or low sloping roofs. This type of roofing system is composed of bitumen combined with synthetic rubberized polymers. This economical roofing material can be composed of two polymers, either APP (atactic polypropylene) or SBS (styrene-butadiene-styrene). APP bitumen roofs are more plastic-like in asphalt quality and are usually heat-welded or torch-applied. SBS has a more rubberized feeling asphalt and can be installed with cold adhesive, mopped on hot bitumen, or self-adhesive. Different types of bitumen roofing materials vary in cost.

Cost Considerations for Roofing Replacement

When budgeting for commercial roof replacement, there are several aspects of the installation to consider. First, factor in material costs. Different materials, even different types of bitumen, will vary by price. Then, factor in labor. This can also vary based on what is required to complete the job. Will it require site preparation, tear down, installation, clean up, trash removal, or anything in between? Are there underlying issues that will need to be addressed first before installation can begin, such as dry rot


repair, roof framing repairs, decking replacement, or gutter and drain replacement? It is also important to note what tools and supplies will be necessary for completing the job. There’s no one set price for the cost of a new bitumen roof.

Average Cost of Bitumen Roofing

On average, a bitumen roof can cost anywhere from $2.50-$4.00 per square foot. This cost is estimated with installation as well. The total cost of bitumen roofing will depend on several factors. First and foremost, the size of the commercial roof will need to be considered. The cost will also depend on location, the complexity of the installation process, the quality of roofing materials being used, or other various factors. Other things to consider that could change the price of bitumen roofing per square foot include stripping and disposing of the existing roof before installing the new bitumen roof. Demolition, discarding, and installing could increase the cost per square foot to somewhere around $4-$8 a square foot. Before pricing out a new bitumen roof, it’s important to talk to a trusted commercial roofing company that can consider all potential costs. For your free quote for modified bitumen roofing installation, contact Certified Commercial Roofing today. Our knowledgeable team of roofing experts is here to help consider all important factors in determining what is right for your commercial roofing system.

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