Thickness Of Concrete Roof

A concrete roof is exactly what it sounds like.

Thickness of concrete roof.

Minimum thickness of concrete slab beam column foundation and other structural members is selected to meet the design requirements as per standard codes. A solid slab of concrete capping the top of your house. 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. The savings in eliminating conventional roofing materials will also offset the cost of the concrete roof solution.

Gypsum concrete roof deck systems consist of a form board wire. 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. Roofing materials have not been used on concrete roofs on houses constructed on the island of guam over their 50 year history. Goodwin in concrete energy conservation guidelines publication eb083 01b of the portland cement association.

R values have been given on a slightly different normally dry unit weight basis by stanley e. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. 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 structural elements based on aci 318 14 irc 2009 is 456 2000 and ubc 1997 is presented.

Exact specifications vary but most concrete roofs are several inches thick. 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. Flexural strength can be assumed to be 33ksi unless a new single ply system is contemplated that requires a higher pull out strength. The roof needs to be thick in order to provide insulation and proper protection.

An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof. Leaks are rare generally caused by faulty construction practices and are easily repaired.