How Thick Is A Roof

Manufacturers express the thickness of metal panels as their gauge with 22 gauge being the thickest and 29 gauge the thinnest of traditionally sold metal roof and wall panels.

How thick is a roof. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Answered october 6 2017. The min thickness of the roof slab should be 6 inches and maximum it can go up to 13 14 inches for span up to 7 m long. Whereas a 60 mil membrane is 0 06 inches thick and so on.

Rafters are the structural beams that support the weight of the roof sheathing and the shingles. Exact specifications vary but most concrete roofs are several inches thick. The most common thickness is probably 60 mils. How thick should a roof be.

Studied at srm institute of science and technology. Each gauge represents a nominal decimal range. A concrete roof is exactly what it sounds like. For example one company might sell a product as being 24 gauge but in reality the thickness of the metal could vary from 0 018 to 0 0335 based upon exactly how that company looks at things and how big of a tolerance they allow for.

The problem with metal roofing gauge is that there is a wide range of tolerances. Trusses are not as thick as rafters are because they are engineered from multiple wood members with the ability.