Concrete Slab Roof Detail

A solid slab of concrete capping the top of your house.

Concrete slab roof detail.

Reinforced concrete slabs are heavier and generate higher seismic forces in an event. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab. If a concrete roof is leaking typical repair is to use a combination of synethtic fabric. This is one of the types of concrete slabs.

Minimum reinforcement is 0 12 for hysd bars and 0 15 for mild steel bars. Heat welded walkway installation. A slab on ground is supported on the subsoil and is usually reinforced with reinforcing bars or welded wire mesh. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.

Step 3 placing the steel joists. The diameter of bar generally used in slabs are. The steel joists will provide a strong foundation for the flat concrete roofing. 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.

Oct 4 2017 flat concrete roof construction details detail drawings. Paraguard expansion joint roof to wall with parasolo flashing. A waffle slab has a holes underneath giving an appearance of waffles. Cracks from concrete shrinkage can typically be patched and sealed.

Wall flashing with coated metal edge. If reinforced concrete were to be reused strong connections would have to be made between roof and walls. Wall base termination detail. Even though a treated concrete slab is waterproof standing water on a roof terrace should be avoided and so all roof terrace slabs should.

The simplest way to construct a roof terrace is by utilising a concrete slab. Exact specifications vary but most concrete roofs are several inches thick. 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. The maximum diameter of bar used in slab should not exceed 1 8 of the total thickness of slab.

Wall with self terminating parapro paraflex 531 liquid flashing. Where to use waffle slab waffle slab details. 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.

Such slabs left unconnected to walls caused many deaths in the 2005 quake from school roof collapses. A concrete roof is exactly what it sounds like. Lightning protection terminal roof mount detail. Roof area divider curb type.

6 mm 8 mm 10 mm 12mm and 16mm. Because typical concrete is porous it needs to be treated with an additive such as xypex which makes the concrete waterproof.