Flat Concrete Roof Thickness

Like structural concrete roof decks composite decks are commonly topside insulated using adhered insulation panels or cast in place lightweight insulating concrete.

Flat concrete roof thickness. Structural concrete composite decks are somewhat uncommon at the roof level. Im building a cinder block house in the cook islands an am planning to put a concrete roof on. Flat roofs come in many shapes and sizes which include parapet roofs roof decks and green roofs to name just a few of the options available. The roof needs to be thick in order to provide insulation and proper protection.

Ultimately a flat roof should play a part in a total architectural composition and has the ability to enhance the aesthetic and practical outcomes of a home. Exact specifications vary but most concrete roofs are several inches thick. A concrete roof is exactly what it sounds like. Don t go with a flat roof have the concrete workers give a small taper to the roof so rainfall runs off instead of puddling on the surface.

This cement layer is known as a screed and contrary to popular belief its purpose is not to waterproof the roof. However the layers used to create these falls often impose an unnecessary additional load and bring no technical advantage. For a flat roof to function correctly and to ensure the durability of its waterproof layers it is essential to prevent the accumulation of ponding water and ensure that rainwater run off falls are at the correct angle of slope. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.

An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof. Standard design and method of construction most concrete roofs follow a similar type of construction. A solid slab of concrete capping the top of your house. A 10 to 15 cm thick slab of reinforced concrete with a thin 2 to 5 cm thick layer of cement on the top.

It shall be known that plain structural footing is not suitable to be used for the top of piles. 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 house is 14m by 14m. 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.

What is the minimum thickness of a flat concrete roof for a house. As an read more.