Modified Bitumen

Modified bitumen roof systems, which have become the alternative to the traditional “built-up” roof system, offers a superior and more durable option compared to a single-ply membrane system.

Modified bitumen roof systems are composed of multiple plies roof membrane bonded together and applied to the roof substrate in hot or cold adhesive. Often times the total thickness of a modified bitumen roof system can exceed 250 mils, which is 4-5 times the thickness of a standard single-ply membrane roof system.

Because of the multiple-plies of roof membrane and its overall thickness, modified bitumen roof systems are recommended for roofs that expect to receive heavy foot traffic, such as roofs that have a lot of rooftop mounted air-conditioning equipment which require continuous maintenance. Modified bitumen is manufactured in rolls that are commonly 36” wide, laps in the roof system are sealed with adhesive or heat welded together to create a continuous watertight seam.

Modified bitumen roof systems have a proven track record of success which makes them one of the best options if you are looking for a new roof system.

Modified Bitumen

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Over the course of more than 62 years, Spann Roofing has roofed over 15,000 commercial and residential buildings and our guarantee stands behind every one of them. We have developed a reputation for an honest, trusted service that will provide quality and reliability regardless the size or complexity of the job. Our services are not limited to commercial roofing.

Spann Roofing is also equipped for the installation, roof repair and maintenance of residential buildings across the area. Spann Roofing is centrally located in Horry County at 459 Allied Drive in Conway, across 501 from Coastal Carolina University.

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