Pebble Ballast Roof

They look aesthetically appealing and installation is fast and easy.

Pebble ballast roof. Gravel ballast of 20 40 mm diameter is required in order to provide resistance to the effects of wind scour bre digest 311 july 1988 refers which can easily remove smaller units from the roof. Though ballast roofing systems look very similar to built up roofing systems or bur s there are certain differences. Additional benefits of ballast on a flat roof. The single ply membrane and other roof components including thermal insulation are loose laid.

This is an alternative size for most ballasted flat roofs with a higher wind load. 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. Ballasted flat roofs are a popular choice especially for commercial buildings. Holes mean roof leaks and roof leaks mean call the roofer.

Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer. Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane. Ballasted roof systems are not really a new concept.

Magazine and roofing southwest although. The buildup is ballasted with a gravel layer of at least 50 mm and 80 kg m 2. They were installed on roofs even in the early 1970 s. Easy to spread the material provides good insulation and drainage and is ideal to walk on during roof inspections.