Gravel Bakkast Roof

It is not unusual to find a gravel top coat on commercial roofing systems.

Gravel bakkast roof.

Click here to edit text 2 round blue gravel approx 1 1 2 3 excavated from our pond with a natural blue tint with brown and natural color hues. 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 purpose of stone or gravel ballast on a flat roof. 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.

Published by justin on september 19 2019 september 19 2019. 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. Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane. Unwashed landscaping decorative drainage and roof ballast stone.

A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof. However other ballasted systems use pavers which are easier to walk on and can be. Medium mixed color decorative rock. They are known for their installation speed and pleasing aesthetics.

Gravel ballasted roofs with sikaplan or sarnafil single ply membranes are conventionally installed. Gravel roof disadvantages on the other hand gravel roofs are hot energy inefficient heavy moisture trapping and unstable. Though primarily confined to built up asphalt roofing systems it can be applied to single ply epdm rubber based membranes as well. Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer.

Ballasted roof systems have been installed since the early 1970 s. For built up roofing the gravel was generally 25 5 inches in diameter. 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. The stones used in ballasted roofing are generally 1 5 2 5 inches in diameter and applied in a thicker layer.

Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. Ballast tar gravel roofing. The buildup is ballasted with a gravel layer of at least 50 mm and 80 kg m 2. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary.

Large mixed color decorative rock. 2 1 2 8 unwashed rock. Most ballasted roof systems use gravel stone that is similar to what would be used in landscaping. These small stones.