Roof Ballast Material

Roofs with pavers as ballast can be used as outdoor patios.

Roof ballast material. Ballast options and flexibility. Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer. Drawbacks of a ballasted roof system. Adds a lot of weight to the roof system typically 10 15 pounds per square feet.

Magazine and roofing southwest although. Extremely difficult to find a leak in this system since the membrane is well hidden. When the concept first came to the u s plenty of roofers scratched their heads and wondered how the roof stayed on without being anchored especially during high winds or storms. It is however ballasted generally with gravel.

Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane. Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. One of the advantages of using mm6125 in a protected membrane roof assembly pmr is that once the membrane is installed owners and designers can take advantage of various ballast options gravel pavers and garden roof to suit a specific project s needs. Additional benefits of ballast on a flat roof.

Ballasted flat roofs are a popular choice especially for commercial buildings. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. The gravel in a ballasted roof helps absorb heat preventing the sun from heating the roof materials below and making the roof more energy efficient.