Flat Roof Gravel Size

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Flat roof gravel size.

We need to top up the gravel in one spot on our flat tar and gravel roof. Typically this gravel ranges in diameter from 2 5 inches 6 35 centimeters to 4 inches 10 16 centimeters. To weigh down or secure the roofing material as is the case with single ply flat roofs. We recently had the building regs inspector around to sign off the extension we have had built.

It can be difficult to work with as it generally cannot be shoveled and instead must be moved individually stone by stone. I have a small flat 2nd story deck roof 325 sq. There are different types and weights of gravel used on flat roofs for these purposes. Ft that is currently covered with tar and gravel.

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. To protect the underlying layer of roofing materials as is the case with built up roofs burs. 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 known as size 1 is relatively large.

It was installed 12 years ago when this section of the house was added over the garage and some first story rooms. Gravel to protect built up.