Remedy for a Leaking Flat Roof

Exposed Nails

• When inspecting a flat roof for leaks, exposed nail heads should be obvious. If you see the heads of nails protruding from the surface of the roof, then you can assume that the roofing material the nail is holding is not secured properly. An exposed nail can mean that the material is lifted from the roof and has allowed moisture inside. This could be the source of your leaks. Fortunately, this is an easy fix. Simply hammer the nails back into place and move on with your inspection. Make sure the nails are flush with the surface of the roof, because over-hammering can be as big of a problem as a nail that isn’t driven in far enough.

Roofing Cement

• If you find a damaged area on your flat roof and you can’t afford to call in professionals to re-roof your building or they can't get to the leak for awhile, then you can use roofing cement to take care of the problem yourself. Roofing cement is a sticky, waterproof substance that can be brushed on to stop minor leaks. It is generally best for small problem areas and it is definitely a temporary fix. This is not a replacement for professional repairs.

Repair Flashing

• Most of the time, a roof’s leak is caused by problems with the flashing. This is no different for a flat roof. Flashing is the material that is put down where the roofing material meets other objects, such as the gutters or around the chimney. If the flashing is bent, installed improperly, or otherwise worn or damaged, it can easily let water in through the gaps and cause a leak. You may be able to repair or replace flashing without having to replace roofing materials. However, if you do replace the roof, get new flashing as well.

Prevent Pooling Water

• Pooling water is a concern for people with flat roofs. The weight of the water pooling in a flat roof surface can cause damage to the roofing material, and can saturate and lead to leaks. Over time, the low points on the roof will get the most stress and wear out before other parts of the roof. Prevent pooling water by making sure gutters are cleaned out regularly and that the flow of water on the roof guides water toward the gutters and does not allow for extended pooling periods.