Thickness Of Concrete Roof

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.

Thickness of concrete roof. 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. Minimum thickness of concrete slab beam column foundation and other structural members is selected to meet the design requirements as per standard codes. 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. An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof. 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. Data from that publication are given below together with the oven dry unit weights that are equivalent to the normally dry unit weights. Leaks are rare generally caused by faulty construction practices and are easily repaired. 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. A solid slab of concrete capping the top of your house. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. A concrete roof is exactly what it sounds like.

Exact specifications vary but most concrete roofs are several inches thick. The savings in eliminating conventional roofing materials will also offset the cost of the concrete roof solution.