Reinforced Concrete Flat Roof Construction Details

The first flat roofs in central europe wood cement roofs and early reinforced concrete.

Reinforced concrete flat roof construction details.

Oct 4 2017 flat concrete roof construction details detail drawings. Reinforced concrete slabs are heavier and generate higher seismic forces in an event. If reinforced concrete were to be reused strong connections would have to be made between roof and walls. According to the 1995 aci code all two way reinforced concrete slab systems including edge supported slabs flat slabs and flat plates are to be analyzed and designed according to one unified method such as direct design method and equivalent frame method.

Interior support beams can help but the construction works best when concrete walls floor and roof form a solid shell. Sufficiently waterproof concrete can be achieved and is regularly used for water tanks ships pipe and more. During construction precautions must be taken to prevent excessive moisture from being trapped between the reinforced concrete roof structure and membrane. This is one of the common causes of flat roof waterproofing failure.

Flat roof designing buildings wiki share your construction industry knowledge. Step 3 placing the steel joists. Of course a concrete roof requires more support than a typical wooden roof. A flat roof is a roof that is completely or almost level.

The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab. For this reason adding a concrete roof onto a wood. Typically they are designed to have a minimum fall of 1 40 which given on site inaccuracies should. Large amount of water vapour can evaporate from reinforced concrete or a wet screed.

For an exposed concrete roof installation it is recommended that a competent concrete mix design consultant or concrete supplier be engaged to assist in the development of the concrete mix to be used. Concrete weighs a lot and the outside walls have to be capable of supporting the giant slab. However the complexity of the generalized approach. The steel joists will provide a strong foundation for the flat concrete.

However whilst they are described as flat almost all flat roofs are actually laid to a fall to ensure that rainwater can run off to the lower side.