Concrete Slab Roof Detail

Step 3 placing the steel joists.

Concrete slab roof detail. Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. This is one of the types of concrete slabs. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab. Oct 4 2017 flat concrete roof construction details detail drawings.

Exact specifications vary but most concrete roofs are several inches thick. 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. 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.

Where to use waffle slab waffle slab details. Even though a treated concrete slab is waterproof standing water on a roof terrace should be avoided and so all roof terrace slabs should. A concrete roof is exactly what it sounds like. 6 mm 8 mm 10 mm 12mm and 16mm.

A concrete slab is a structural feature usually of constant thickness that can be used as a floor or a roof. Sagging from improper construction or inadequate reinforcement would require structural repairs. Wall flashing with coated metal edge. A waffle slab has a holes underneath giving an appearance of waffles.

The simplest way to construct a roof terrace is by utilising a concrete slab. Wall with self terminating parapro paraflex 531 liquid flashing. Reinforced concrete slabs are heavier and generate higher seismic forces in an event. The diameter of bar generally used in slabs are.

Wall base termination detail. A solid slab of concrete capping the top of your house. Thickness of the slab is decided based on span to depth ratio specified in is456 2000. Lightning protection terminal roof mount detail.

Heat welded walkway installation. Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars. As the width of the concrete slab is 16 3 4 inches place the steel joists at this distance. If your roof is a flat concrete slab and is cracking there are a variety of causes.

Paraguard expansion joint roof to wall with parasolo flashing. If reinforced concrete were to be reused strong connections would have to be made between roof and walls. If a concrete roof is leaking typical repair is to use a combination of synethtic fabric. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab.

A slab on ground is supported on the subsoil and is usually reinforced with reinforcing bars or welded wire mesh. Roof area divider curb type.