Modified Bitumen

Modified Bitumen roof systems are typically multi-ply systems that feature several layers of protection and can be installed using hot asphalt, cold-applied adhesive, hot air, or open flame torch.

The main advantages are high tensile strength, puncture resistance, UV protection, and multi-layer waterproofing.

As the name implies, the asphaltic based waterproofing sheet has been modified with plasticizers or rubber polymers.

Some of the modified systems are “hybrid systems” utilizing built-up methods along with the modified materials.

Typically, UV protection from membrane degradation would be provided by either a coating, ceramic granules, or a gravel surface finish- depending on the system selection and specification provided by either the Roof Consultant, Architect, or Roofing Contractor.

Manufacturers offer various long-term warranties for up to 30 years.

Wm. Molnar Roofing, Inc.
22201Pennsylvania Road
Brownstown Charter Township, MI 48193

Ph: 734-281-0591
Hours: M-F 7:00 am - 4:00 pm

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