Concrete Slab Roof Leaking

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.

Concrete slab roof leaking.

Concrete cannot be the top layer of any roof. The most common complaint with regard to both concrete tile and flat concrete roofing is water leaks. However concrete is porous. Do waterproof your roof.

What is extremely important is that this metal sheet isn t horizontal. Roof penetrations are ac units vents drains pipes steel protuding from the roof and other systems that come through the concrete roof. Concrete also cracks and those cracks will be the first. 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. A 10 to 15 cm thick slab of reinforced concrete with a thin 2 to 5 cm thick layer of cement on the top. You have a rock hard concrete floor and it seems impervious to water intrusion. It must be under slope.

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. Here in florida most building foundations are concrete slab.