Concrete Slab Roof Leaking

This cement layer is known as a screed and contrary to popular belief its purpose is not to waterproof the roof.

Concrete slab roof leaking.

You have a rock hard concrete floor and it seems impervious to water intrusion. Roof penetrations are found on many flat concrete slab roofs. 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. The most common complaint with regard to both concrete tile and flat concrete roofing is water leaks.

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. However concrete is porous. It must be under slope. What is extremely important is that this metal sheet isn t horizontal.

Concrete also cracks and those cracks will be the first. Here in florida most building foundations are concrete slab. Concrete cannot be the top layer of any roof. Most concrete roofs follow a similar type of construction.

If you have a look t some of the houses in portmore you will see the steel protruding from the roofs. Roof penetrations are ac units vents drains pipes steel protuding from the roof and other systems that come through the concrete roof.