Roof Thickness For House

Because 22 24 or 26 gauge sheeting is thicker and will therefore remain more structurally sound over a longer span than a 29 gauge the building needs fewer supports which saves your customers money.

Roof thickness for house.

Studied at srm institute of science and technology. Post frames generally lack structural sheathing so the roof and wall panels must span between the supporting trusses or purlins. Many factors affect thickness. The answer depends mostly on how far apart the rafters are and the roof loads which vary based on the pitch of your roof.

The problem with metal roofing gauge is that there is a wide range of tolerances. The following tools estimate the area of a roof as well as the amount of materials necessary to construct a roof of a given area. The most common scenario is a home that has rafters set approximately 16 inches apart. Answered october 6 2017.

How thick should a roof be. The typical thickness range for sheathing is 3 8 to 3 4 inch. The minimum plywood for roofing plywood is layers of wood. 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.

Sheathing should be a minimum of 19 32 inch thick. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Trusses are not as thick as rafters are because they are engineered from multiple wood members with the ability. Plywood is made with three or more layers of thin wood glued together with the grain.

In this case plywood should be a minimum of 3 8 inch thick. Commercial is typically steel w a composite deck so you ll have a 5 6 slab sitting on top of steel beams. 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. The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator.

For example we build residential in flat plate concrete which will typically have a column spacing of 20 oc and a slab thickness of 8 typ.