Roof Ballast Rocks

Ballasted flat roofs are a popular choice especially for commercial buildings.

Roof ballast rocks.

Please visit us to view actual products before placing an order. 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. Landscaping decorative drainage septic systems roof ballast. 3 4 1 1 2 excavated from our pond with a natural blue tint mixed with brown and natural color hues.

Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane. Despite the positive qualities associated with a ballasted roof system there are some challenges. 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. 2 roofing ballast no longer meets spec astm d 448.

This appears to be a form of roof ballast. Personally i dislike them. It is however ballasted generally with gravel. March 11th 2010 at 2 41 pm.

It is very important to note that the amount of gravel being applied to a roof must be precise it depends on the specific roofing spec being used and the building type. Ton or 60lbs bags 3 roofing ballast astm d 448. The single ply membrane and other roof components including thermal insulation are loose laid. A ballasted roof is a roof with something such as rocks or concrete pavers to hold the roofing membrane such as epdm down.

Gravel ballasted roofs with sikaplan or sarnafil single ply membranes are conventionally installed. Products may run larger than description. Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. You can still find houses here in the city with rock roofs.

Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer. Commercial flat roofs often carry an asphalt roofing system incorporating rocks or stones and are defined as a ballasted roof. The ballast also helps protect the roofing membrane from damage such as from hail tree branches and ultraviolet light. Used in roofing applications.

Admittedly one that i have not seen but i haven t been in the desert since i was a kid. Additional benefits of ballast on a flat roof. 4 blue round gravel approx. Naturally round grey and tan granite.

The difficulty with a ballasted roof is the issue of water pooling. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. Roofing ballast is usually the little pebbles you see on a flat ish roof. Holes mean roof leaks and roof leaks mean call the roofer.