Modified Bitumen Roof Specialists

Modified Bitumen roof systems are asphalt based and provide superior waterproofing characteristics when compared to other roofing systems. The typical life span for these systems is about 10 to 20 years. Modified Bitumen roofs are usually installed as a two ply system and are always fully adhered during installation


These roof systems are made up of asphalt that has been modified with a polymer to create plastic or rubber like properties. The modifiers give the new material increased resistance to brittleness, cold temperatures and increased elasticity and strength.

Modified Bitumen Roof Systems

There are a variety of surfacing options for APP and SBS modified roofs including factory applied mineral surfaces, gravel surfaces, smooth surfaces, and “cool roof” coatings, which are highly reflective coatings that can help save on cooling costs.

Modified Bitumen (MB) roofing is an asphalt-based system, and is closely related to the Built-up-Roof (BUR), which is designed for buildings with low-slope or “flat” roof structures. The engineered modified bitumen roofing membrane originated in Europe in the mid 1960′s and and soon after saw success in the United States and Canada.

The Look & Protection You Want‎

We deliver peace of mind to building owners and facility managers by managing our customers roofing and building life cycles in all industries. With a choice of cold- or hot-application and a range of performance levels, all of which provide a high level of waterproofing protection for your building

Modified Bitumen Roofing Specialists

The APP modified asphalt is reinforced with a polyester mat and manufactured into a roll product. These membranes have extra asphalt on the back side which allows it to stick to the substrate through application methods like heat welded or torch applied.

Torch Applied – The APP modified membrane is applied using an open flame torch to melt the bottom side of the sheet as it is being put on your roof.

Heat Welding – The welder is used to push out hot air, which helps fuse the back side of the membrane to the substrate. This method is a safer than torch applied, as it is less of a fire hazard.

Hot Asphalt application – Hot Asphalt is placed on the felts or substrate with a mop or a machine and then the membrane is laid over the hot asphalt. The hot asphalt acts as the adhesive and makes the membrane stick to the substrate.

Cold Adhesive – The modified membrane is set in a cold process using specially formulated asphalt based adhesives as it is being applied.

Self Adhered – The bottom surface of the membrane is covered with an adhesive and release paper. Once the paper is removed the adhesive allows the membrane to adhere to the substrate without the use of additional adhesives.