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.

Gypsum concrete roof deck systems consist of a form board wire. Leaks are rare generally caused by faulty construction practices and are easily repaired. A concrete roof is exactly what it sounds like. Exact specifications vary but most concrete roofs are several inches thick.

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

Roofing materials have not been used on concrete roofs on houses constructed on the island of guam over their 50 year history. R values have been given on a slightly different normally dry unit weight basis by stanley e. A solid slab of concrete capping the top of your house. The roof needs to be thick in order to provide insulation and proper protection.

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

An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof. Data from that publication are given below together with the oven dry unit weights that are equivalent to the normally dry unit weights.