Why Put Stone Chippings On A Flat Roof

There are two torched on layers with the top layer being a green mineral felt which i must say does look very smart. 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. Originally your flat roof should have installed with slight pitch to allow water to drain away.

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Gravel to protect built up.

Why put stone chippings on a flat roof. 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. So it sounds as though your problems are caused not by the presence of the stone chippings but rather by poor. Two common problems faced by owners of flat roofed properties are the build up of moss or silt and the free movement of improperly secured gravel chippings or pea shingle from the surface. To protect the underlying layer of roofing materials as is the case with built up roofs burs.

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. Most flat roofs will need some form of surface protection for the following reasons. 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. Are flat roof chippings always necessary.

Flat roof surface protection. A flat roof should actually have a fall of at least 1 in 80 and preferably more. To weigh down or secure the roofing material as is the case with single ply flat roofs. There are different types and weights of gravel used on flat roofs for these purposes.

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. Gravel is used on flat roofs for two reasons. The roof covers quite a large area and incorporates an existing.