Gravel Ballast 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 ballast roof.

When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. 2 1 2 8 unwashed rock. Published by justin on september 19 2019 september 19 2019. 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.

Somebody walking on the roof will undoubtedly step on the ballast and put a hole in the membrane. Though primarily confined to built up asphalt roofing systems it can be applied to single ply epdm rubber based membranes as well. 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. 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.

Unwashed landscaping decorative drainage and roof ballast stone. Medium mixed color decorative rock. They are known for their installation speed and pleasing aesthetics. For built up roofing the gravel was generally 25 5 inches in diameter.

The single ply membrane and other roof components including thermal insulation are loose laid. It is not unusual to find a gravel top coat on commercial roofing systems. Ballast tar gravel roofing. Magazine and roofing southwest although single ply roofs inherently have sun protective qualities ballast provides an extra layer of protection from uv rays.

Most ballasted roof systems use gravel stone that is similar to what would be used in landscaping. Ballasted roof systems are simultaneously a roofer s best friend and arch nemesis. Simply put a ballasted roof is easy to install and basically guaranteed maintenance work for a roofer. However other ballasted systems use pavers which are easier to walk on and can be.

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. Large mixed color decorative rock. Holes mean roof leaks and roof leaks mean call the roofer. 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. The buildup is ballasted with a gravel layer of at least 50 mm and 80 kg m 2. 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.