Modified Bitumen Roofing

What is Modified Bitumen Roofing?

Modified Bitumen Roofing materials, more technically known as Polymer-Modified Bitumen, are special types of membranes used in a type of Built-Up Roof system. Like a BUR roof, special roofing sheet material is placed between layers of hot or cold bitumen, or asphalt. Modified Bitumen Roofing uses polymer sheets that have been coated in special materials like talc or sand to provide added UV protection, weight, structure, and durability to the roof.

Advantages and Limitations of Modified Bitumen Roofing

Modified Bitumen Roofing is an incredibly durable and waterproof type of roof system that can last for decades. It is also highly resistant to UV and weathering, and the sheets inside the layers can be modified (more insulation, for example) for the climate or property owner’s needs. A modified bitumen roofing system can’t be used on a flat roof, as it needs at least a little slope. It is also a heavier type of roofing meant for sturdy structures, and installation is a delicate process that requires professional handling so certain materials don’t react to each other.

How to Install and Maintain Modified Bitumen Roofing

A modified bitumen roof system uses either hot or cold asphalt between the special coated fabric layers. Hot bitumen is applied by torch or brush, but sometimes special cold adhesives are used to apply this type of roofing material. The polymer-modified sheets come in a variety of reinforcements, thicknesses, and mineral coatings, depending on their use. Many times, smooth sheets will be used in the bottom and middle of the layers, while a sheet coated in sand or another rough coating will be used on the top to seal everything.

How to find a certified Modified Bitumen Roofing Contractor

Because modified bitumen roof systems require professional installation, you need All Area Roofing & Construction to maintain or install your roof. All Area Roofing has some of the most experienced and dependable roofing contractors who know all about the latest technology in roofing. Contact us today for a quote on a BUR or modified bitumen roof.