Flat Roof Gravel Size

To protect the underlying layer of roofing materials as is the case with built up roofs burs.

Flat roof gravel size. Gravel is used on flat roofs for two reasons. Are there any specific requirements for the gravel size type colour etc that we should keep in mind when we re buying a bag. Gravel to protect built up. Ft that is currently covered with tar and gravel.

Gravel known as size 1 is relatively large. There are different types and weights of gravel used on flat roofs for these purposes. It was installed 12 years ago when this section of the house was added over the garage and some first story rooms. 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. Typically this gravel ranges in diameter from 2 5 inches 6 35 centimeters to 4 inches 10 16 centimeters. He told me that i needed to lay some gravel on the flat roof. Can i use pea shingle size 10 15mm does anyone know what sort of area one of the bags from a diy store would approx cover.

We need to top up the gravel in one spot on our flat tar and gravel roof. We recently had the building regs inspector around to sign off the extension we have had built.