Baton Rouge Modified Bitumen Roofing

Benefits of Modified Bitumen Roofing

Modified bitumen roofing is a reliable solution for low-slope and flat roof areas on both residential and commercial properties. Built with multiple layers of reinforced asphalt membranes, these systems deliver strong waterproofing, flexibility, and long-term performance in Louisiana’s heat, humidity, and heavy rainfall.


At Cribbs, Inc., we install modified bitumen roofing systems as part of our full range of roofing services, designed to handle ponding water, thermal movement, and daily exposure while maintaining durability and dependable protection.

Low-Slope Roofs

Modified bitumen is engineered for low-slope roof areas where traditional shingle systems are not suitable. Its layered membrane construction creates a continuous, watertight surface that helps reduce the risk of leaks and moisture intrusion.

Durability & Flexibility

These systems combine asphalt with polymer modifiers, allowing the membrane to expand and contract with temperature changes. This added flexibility helps reduce cracking and splitting over time, particularly during Baton Rouge’s hot summers and cooler winter nights.

Waterproof Protection

Multiple plies and a granular-surfaced cap sheet provide added protection against water, UV exposure, and physical wear. When properly installed, modified bitumen roofing delivers dependable performance with routine maintenance.

Modified Bitumen Roof Installs in Baton Rouge


Proper installation is critical to the long-term performance of a modified bitumen roof. Unlike steep-slope systems, low-slope roofs rely on precise detailing, secure seams, and effective drainage to prevent water intrusion and premature wear.


Cribbs, Inc. installs modified bitumen roofing systems with careful attention to every layer, transition, and penetration to ensure consistent protection across the entire roof surface.



System Components & Installation Details


Modified bitumen roof systems are built using multiple layers that work to provide durability and waterproof protection.

These systems are designed for low-slope applications where a continuous, reinforced membrane is critical.


Common system components include:


  • Base sheets that create the foundation of the system
  • Reinforced membrane layers for added strength and flexibility
  • Granular-surfaced cap sheets that protect against UV exposure and wear
  • Polymer-modified asphalt that improves flexibility and performance
  • Properly sealed seams to maintain a watertight roof surface

Installation Approach & Performance


Proper installation is essential to the performance of a modified bitumen roof. Because low-slope roofs manage water differently than steep-slope systems, consistency and precision during installation matter.


Cribbs, Inc. installs modified bitumen roofing systems with careful attention to:


  • Secure membrane attachment and seam integrity
  • Proper flashing at drains, walls, and penetrations
  • Drainage considerations to help manage ponding water


Each installation is tailored to the structure, overall roof layout, and day-to-day usage needs of the property to support reliable, long-term performance.

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We have replaced 2 roofs on our homes in the last year. We also have a commercial roof that they repaired. They are honest, reliable and professional. I have recommended them to my friends.

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Great customer service. Cindy is friendly and extremely helpful!

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My go to for roofing tiles and slate!

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They do a GREAT job! They are very Professional! They clean up after themselves and unlike some companies, they do not require payment upfront. Highly recommend them!

R. Longstreet

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Donny Chatelaine came by our home & gave us great information about what we needed to do! He was very prompt & informative! Thank you Cribbs Inc!

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