Roof Ballast Rocks

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.

Roof ballast rocks.

This appears to be a form of roof ballast. 3 4 1 1 2 excavated from our pond with a natural blue tint mixed with brown and natural color hues. It is however ballasted generally with gravel. Used in roofing applications.

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. Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane. Landscaping decorative drainage septic systems roof ballast. Roofing ballast is usually the little pebbles you see on a flat ish roof.

Commercial flat roofs often carry an asphalt roofing system incorporating rocks or stones and are defined as a ballasted roof. 4 blue round gravel approx. 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. March 11th 2010 at 2 41 pm.

The difficulty with a ballasted roof is the issue of water pooling. The ballast also helps protect the roofing membrane from damage such as from hail tree branches and ultraviolet light. Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. 831 main street bridgewater nj 08807 1 800 82 rocks.

A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. Admittedly one that i have not seen but i haven t been in the desert since i was a kid. Products may run larger than description. Holes mean roof leaks and roof leaks mean call the roofer.

2 roofing ballast no longer meets spec astm d 448. Ton or 60lbs bags 3 roofing ballast astm d 448. Naturally round grey and tan granite. Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer.

Please visit us to view actual products before placing an order. You can still find houses here in the city with rock roofs. Gravel ballasted roofs with sikaplan or sarnafil single ply membranes are conventionally installed. The buildup is ballasted with a gravel layer of at least 50 mm and 80 kg m 2.

A ballasted roof is a roof with something such as rocks or concrete pavers to hold the roofing membrane such as epdm down. Despite the positive qualities associated with a ballasted roof system there are some challenges. Too much gravel can result in a structural issue due to weight. Ballasted flat roofs are a popular choice especially for commercial buildings.