Reinforced Concrete Flat Roof Construction Details

Concrete weighs a lot and the outside walls have to be capable of supporting the giant slab.

Reinforced concrete flat roof construction details.

Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. The evolution of the flat roof roofs of earth and loam archetypal forms renaissance and baroque. Oct 4 2017 flat concrete roof construction details detail drawings. During construction precautions must be taken to prevent excessive moisture from being trapped between the reinforced concrete roof structure and membrane.

Sufficiently waterproof concrete can be achieved and is regularly used for water tanks ships pipe and more. Step 3 placing the steel joists. 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.

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. Flat roof designing buildings wiki share your construction industry knowledge. Interior support beams can help but the construction works best when concrete walls floor and roof form a solid shell. Large amount of water vapour can evaporate from reinforced concrete or a wet screed.

This is one of the common causes of flat roof waterproofing failure. For this reason adding a concrete roof onto a wood. 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. The steel joists will provide a strong foundation for the flat concrete.

However the complexity of the generalized approach. If reinforced concrete were to be reused strong connections would have to be made between roof and walls. One of the most crucial step in building a flat concrete roof is to figure out the size of the concrete block you will need. Of course a concrete roof requires more support than a typical wooden roof.

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