Concrete Slab Roof Detail

A slab on ground is supported on the subsoil and is usually reinforced with reinforcing bars or welded wire mesh.

Concrete slab roof detail.

This is one of the types of concrete slabs. As the width of the concrete slab is 16 3 4 inches place the steel joists at this distance. Sagging from improper construction or inadequate reinforcement would require structural repairs. 6 mm 8 mm 10 mm 12mm and 16mm.

The diameter of bar generally used in slabs are. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab. Even though a treated concrete slab is waterproof standing water on a roof terrace should be avoided and so all roof terrace slabs should. Wall with self terminating parapro paraflex 531 liquid flashing.

Oct 4 2017 flat concrete roof construction details detail drawings. Roof area divider curb type. Heat welded walkway installation. Wall flashing with coated metal edge.

Exact specifications vary but most concrete roofs are several inches thick. Where to use waffle slab waffle slab details. Thickness of the slab is decided based on span to depth ratio specified in is456 2000. Wall base termination detail.

A concrete roof is exactly what it sounds like. The simplest way to construct a roof terrace is by utilising a concrete slab. A waffle slab has a holes underneath giving an appearance of waffles. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.

Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. Paraguard expansion joint roof to wall with parasolo flashing. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Because typical concrete is porous it needs to be treated with an additive such as xypex which makes the concrete waterproof.

Cracks from concrete shrinkage can typically be patched and sealed. A solid slab of concrete capping the top of your house. If your roof is a flat concrete slab and is cracking there are a variety of causes. If reinforced concrete were to be reused strong connections would have to be made between roof and walls.

Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars. The concrete waffle slab is often used for industrial and commercial buildings while wood and metal waffle slabs are used in many other construction sites. A suspended slab or structural slab spans between supports and must be reinforced to resist bending moments calculated from statics based on the magnitude of load and span. A concrete slab is a structural feature usually of constant thickness that can be used as a floor or a roof.

The steel joists will provide a strong foundation for the flat concrete roofing. Step 3 placing the steel joists.