Flat Roof Stone Ballast

It is however ballasted generally with gravel.

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. There are no fasteners installed at all 3 and 4. 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. 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.

Roof survey large 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. Next the membrane is rolled over the insulation 2. Additional benefits of ballast on a flat roof 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 insulation is loose laid onto the decking. A number of attachment and ballast options are available depending on the planned system and the conditions on site. Your flat roof requires repairs but it s covered in either gravel or ballast stones which makes it challenging to work on. 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.

The stone ballast on a ballasted roof system is the only thing holding the roof system in place. 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 ballast is spread 2 4 in thickness acrossed the membrane. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material.

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. I recently looked a leaky flat rubber mambrane roof having large river stone ballast. Due to variations in monitor settings we cannot guarantee that the colours displayed on our website will exactly match the colour of the product.