Why Put Chippings On A Flat Roof

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.

Why put chippings on a flat roof. The chips act as a barrier between non solar reflective felt and the sun basically help prolong its life span of the felt if its green mineral on your new roof you will not have to chip it as the minerals are solar reflective. 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. 10 08 fri 01st nov 2019. However the chippings can move around or conceal defects in the roof and should not be walked on as they may puncture the membrane.

To protect the underlying layer of roofing materials as is the case with built up roofs burs. To weigh down or secure the roofing material as is the case with single ply flat roofs. Chippings should only be used on roofs at less than 10 as complete adhesion at steeper pitched is not possible. Chippings can be used provide a ballast layer to help hold down the roof surface in exposed locations.