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.

Concrete slab roof leaking.

What is extremely important is that this metal sheet isn t horizontal. However concrete is porous. The most common complaint with regard to both concrete tile and flat concrete roofing is water leaks. A 10 to 15 cm thick slab of reinforced concrete with a thin 2 to 5 cm thick layer of cement on the top.

Concrete cannot be the top layer of any roof. No water isn t going to soak up like a sponge but concrete does allow water to seep through when there is enough. This cement layer is known as a screed and contrary to popular belief its purpose is not to waterproof the roof. Concrete also cracks and those cracks will be the first.

You have a rock hard concrete floor and it seems impervious to water intrusion. It must be under slope. Do waterproof your roof. 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.

Here in florida most building foundations are concrete slab. If you have a look t some of the houses in portmore you will see the steel protruding from the roofs.