Epdm flat roofs

It is not unusual to find a gravel top coat on commercial or industrial roofing systems. Though primarily confined to built-up asphalt roofing systems, it can be applied to single-ply EPDM, rubber-based membranes as well. These small stones are worth more than their weight in the protection they offer for underlying roofing materials and the barrier they provide to external elements like ultraviolet rays and harsh weather elements. Both factors can extend the life of your flat commercial roof and delay repairs or replacement.

Specifically, there are two main reasons to use a ballasted commercial roofing system:

• The weight provided by the gravel is used to anchor down the roof materials, therefore using far fewer fasteners to hold the materials to the decking. The gravel can be applied in far less time than using a specially designed screw and plate fastening pattern.

• The ballast is used to keep the roofing system cool and of out of the sun’s harmful rays, thus keeping energy costs down. The gravel top coat is also extremely resilient to heavy foot traffic and high-wind scenarios.