Why Put Stone Chippings On A Flat Roof

What ever you consider to do think about the extra weight you will add to the roof structure by adding a layer of gravel chippings.

Why put stone chippings on a flat roof.

To weigh down or secure the roofing material as is the case with single ply flat roofs. Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system. Are flat roof chippings always necessary. So it sounds as though your problems are caused not by the presence of the stone chippings but rather by poor.

A flat roof should actually have a fall of at least 1 in 80 and preferably more. These issues are not something that you should encounter in the natural lifespan of your flat roof so should be taken as a sign warranting investigation. Uv rays the covering of a flat roof will spend many years exposed to ultra violet light from the sun this can lead to oxidisation of the roof surface causing the plasticisers leak out and the surface to become brittle. Our roofer has told us that we don t require chippings on our new flat roof due to the quality of the felt he has used.

Originally your flat roof should have installed with slight pitch to allow water to drain away. Most flat roofs will need some form of surface protection for the following reasons. Flat roof surface protection. To protect the underlying layer of roofing materials as is the case with built up roofs burs.

There are two torched on layers with the top layer being a green mineral felt which i must say does look very smart. Gravel to protect built up. There are different types and weights of gravel used on flat roofs for these purposes.