Thickness Of Concrete Roof

Concrete tile will never hold its color as well as clay says ken mcgee owner of the tile man a supplier and installer of concrete and clay roof tiles in louisburg n c.

Thickness of concrete roof.

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Minimum thickness of concrete structural elements based on aci 318 14 irc 2009 is 456 2000 and ubc 1997 is presented. The savings in eliminating conventional roofing materials will also offset the cost of the concrete roof solution. Flexural strength can be assumed to be 33ksi unless a new single ply system is contemplated that requires a higher pull out strength.

Gypsum concrete roof deck systems consist of a form board wire. A solid slab of concrete capping the top of your house. The flat concrete roof itself can be up to 7 inches thick although the greater the thickness the more the concrete will need be poured in increasing numbers of layers with each one needing to dry before the next is poured. R values have been given on a slightly different normally dry unit weight basis by stanley e.

Standard roof sheathing which consists of 4 by 8 sheets of plywood or oriented strand board or osb is 1 2 inch thick and attaches directly to the roof rafters or the roof trusses. Roofing materials have not been used on concrete roofs on houses constructed on the island of guam over their 50 year history. Thickness of a steel roof deck can be determined at a roof hatch where the edge of the deck may be available for measurement with a micrometer. Minimum thickness of concrete slab beam column foundation and other structural members is selected to meet the design requirements as per standard codes.

Although most concrete roof tiles are manufactured with an integral pigment that colors the entire thickness of the tile the color of concrete tiles will fade over time. Goodwin in concrete energy conservation guidelines publication eb083 01b of the portland cement association. Concrete thickness for flatwork such as slabs on grade and driveways a minimum thickness of four inches is required but increasing the thickness to five inches can add nearly 50 percent to the load bearing capacity. The roof needs to be thick in order to provide insulation and proper protection.

A concrete roof is exactly what it sounds like. Exact specifications vary but most concrete roofs are several inches thick.