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.

As an read more. Structural concrete composite decks are somewhat uncommon at the roof level. What is the minimum thickness of a flat concrete roof for a 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.

This cement layer is known as a screed and contrary to popular belief its purpose is not to waterproof the roof. 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. It shall be known that plain structural footing is not suitable to be used for the top of piles. A solid slab of concrete capping the top of your house.

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. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Exact specifications vary but most concrete roofs are several inches thick.

However the layers used to create these falls often impose an unnecessary additional load and bring no technical advantage. 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. 0 0 0. 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. 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. Standard design and method of construction most concrete roofs follow a similar type of construction. The minimum thickness for plain concrete structural footing is suggested by aci 318 14 and set as 200mm and the same value is suggested by ubc.

The house is 14m by 14m. They are often however part of a building design when future above roof level floors are contemplated.