Flat Roof Stone Ballast

Though primarily confined to built up asphalt roofing systems it can be applied to single ply epdm rubber based membranes as well.

Flat roof stone ballast.

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. The ballast is spread 2 4 in thickness acrossed the membrane. The insulation is loose laid onto the decking. It is however ballasted generally with gravel.

Most ballast removal companies will come and get the job done right but that still requires you to find a qualified roofing expert to handle the repairs. Due to variations in monitor settings we cannot guarantee that the colours displayed on our website will exactly match the colour of the product. I was on the roof about 2 hours after sundown and the roof appeared uniform in temperature. Ballast is commonly used with roofs made of tar and gravel roof alternatives including ethylene propylene diene monomer epdm polyvinyl chloride pvc and thermoplastic polyolefin tpo single ply flat roofs.

There are no fasteners installed at all 3 and 4. I recently looked a leaky flat rubber mambrane roof having large river stone ballast. Stones have been used as roofing ballast since antiquity and in its modern form stone ballast goes back to at least the 1970s. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material.

Next the membrane is rolled over the insulation 2. Stone ballast roofs if you ve ever seen a flat roof covered with gravel and wondered why the answer is simple it s there to keep the roof in place. The purpose of stone or gravel ballast on a flat roof it is not unusual to find a gravel top coat on commercial roofing systems. The easiest way to use flat roofs for photovoltaic systems the s flex roof frame with ballast is the simple and proven solution for non penetrative green roof compatible flat roof installations.

A number of attachment and ballast options are available depending on the planned system and the conditions on site. Roofing stone is available in 1 1 1 2 roof ballast and 3 8 washed pea stone designed to be used on flat rooftops please note. The stone ballast on a ballasted roof system is the only thing holding the roof system in place.