EPDM and specifically Ballasted EPDM made up the vast majority of roofing projects for almost 40 years. With the original technology, there were inherent long term performance issues. Seaming issues due to Neoprene splicing adhesive, bridging due to the deterioration of nailing strips at angle changes, and detail membrane that had very little resistance to Ultraviolet light caused disfavor with many designers and owners. Below are some of the enhanced products designed specifically to address these system issues.
These advances in technology that began in the mid to late 80's and continued through the early 90's, have proven to have successfully solved these issues. Ballasted EPDM is now a versatile, cost effective, and high performing roofing assembly.
Examples of available ballast in today's environment include:
- River washed stone
- Certain garden roofing assemblies
- Concrete pavers
THE ADVANTAGES
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Installed cost advantage due to overall reduction of labor and accessories |
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Larger factory sheets require fewer field seams which improves performance and consistency |
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Ballasted roof systems can be esthetically pleasing |
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When replacing , you do not have to destroy and/or remove existing installation |
IT'S IN THE CODE
International Building Code (IBC) 2018 has added governance to ballasted systems in Section 1504. See attached document for more information.
Please reach out to Larimer/Shannon Group at 770.272.9090 to discuss these systems and/or the components within them.