Concrete Slab Roof Leaking

Here in florida most building foundations are concrete slab.

Concrete slab roof leaking.

Roof penetrations are ac units vents drains pipes steel protuding from the roof and other systems that come through the concrete roof. However concrete is porous. This cement layer is known as a screed and contrary to popular belief its purpose is not to waterproof the roof. Do waterproof your roof.

A 10 to 15 cm thick slab of reinforced concrete with a thin 2 to 5 cm thick layer of cement on the top. Most concrete roofs follow a similar type of construction. No water isn t going to soak up like a sponge but concrete does allow water to seep through when there is enough. When there are leaks in a flat concrete roof the fast fix is usually to apply some kind of sealant or waterproof cement at the site of the leak.

Concrete cannot be the top layer of any roof. You have a rock hard concrete floor and it seems impervious to water intrusion. The most common complaint with regard to both concrete tile and flat concrete roofing is water leaks. Most likely you have just a concrete slab and not roof system with layers of insulation what you should do is to cover concrete with metal sheet for example.

If you have a look t some of the houses in portmore you will see the steel protruding from the roofs. It must be under slope.