Gravel Ballasted Roof

Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane.

Gravel ballasted roof.

However other ballasted systems use pavers which are easier to walk on and can be. On the other hand ballast roofing might be the right choice for your commercial property if you live somewhere with a ready source of ballast rocks gravel of the appropriate size and you prefer the aesthetic look and texture of the larger stones. Holes mean roof leaks and roof leaks mean call the roofer. For built up roofing the gravel was generally 25 5 inches in diameter.

The stones used in ballasted roofing are generally 1 5 2 5 inches in diameter and applied in a thicker layer. Ballasted roof systems have been installed since the early 1970 s. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer.

Some commercial single ply roofs are ballasted with gravel this report does not apply to these gravel roof advantages most gravel roofs are inexpensive to build offer some protection to vulnerable asphalt against uv damage and the stones are very durable. The gravel used in built up roofing what the roofing contractors were used to was not the same as that used in a ballasted roof. 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. However bur roofs use small stones embedded in tar or asphalt in order to serve as protection from sun rays whereas ballasted roofs use large loose unembedded gravel in far greater quantities and weight from 10.

Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. Too much gravel can result in a structural issue due to weight. Despite the positive qualities associated with a ballasted roof system there are some challenges. They are known for their installation speed and pleasing aesthetics.

Magazine and roofing southwest although single ply roofs inherently have sun protective qualities ballast provides an extra layer of protection from uv rays. Ballast tar gravel roofing. Gravel ballasted roofs with sikaplan or sarnafil single ply membranes are conventionally installed. The single ply membrane and other roof components including thermal insulation are loose laid.

Stone ballasted roofs are easy to confuse with bur roofs since the latter are also commonly topped with crushed stone or gravel. Most ballasted roof systems use gravel stone that is similar to what would be used in landscaping.