In fact the weight for a ballasted roof can range from about 15 pounds per sf psf to about 25 psf.
Epdm ballasted roofing system.
No roofing system is 100 resistant to everything.
In a ballasted roofing system the aggregate is usually stones at least an inch in diameter and applied heavily throughout the roof.
Only a qualified epdm installer such as ourselves should install an epdm roof.
It is most commonly used on large open roofs without many penetrations such as a warehouse.
Depending upon the object and the membrane thickness epdm can puncture.
Firestone epdm ballasted system application.
Epdm ballasted roofing system.
Drawbacks of a ballasted roof system.
An epdm ballasted system offers an economical roof system that can be applied to many different types of buildings assuming the building structure and decking have been designed to hold the additional weight of the ballast.
This is when the roof membrane is held in place by aggregate.
The firestone epdm ballasted system is an economical epdm roofing system suitable for a wide variety of buildings it can be applied on any building that can accommodate the extra load of the ballast and where the roof slope does not exceed 10.
Ballast stone traps a lot of dirt making patching difficult.
Extremely difficult to find a leak in this system since the membrane is well hidden.
Ballast stone fractures and gets sharper over time which can puncture the.