Having a pond of water at the roof?

It is indeed no good sign if you have just received heavy showers because there is a good possibility that your roof and its drainage may not have been prepared to handle such a high volume of water. As a result, the water starts to gather on top of the roofing membrane. Initially, this might not seem that much of a threat. The reality is, it is as much of a threat as any other catastrophe that can rip through the structure. Stagnant water can cause water damages to the structure, weaken the membranes and even be a host for various diseases.

All commercial roofs are fitted with drainage systems which can drain rainwater or melted snow away from the roof. There are times where even the best drainage system may fail, such as in cases of a heavy downpour. The resulting pond of water will start to eat away the roofing in place. Moss, that pale and rust riddled pattern you often see on television, would start to gather and invite a world of troublesome diseases and effects. What makes it worse is the fact that water will eventually cause a complete roof failure far before its actual lifespan.

Any of the above is never good news for either the owner of the unit or the workers or residents of the place living under the said roof. It is absolutely vital that these roofing systems are looked by a professional and that all repairs and preventive methods are carried out at the soonest to avoid disastrous results.

Needless to say, not all roofs go through these problems. It generally happens when the roof system that was used during installation was of inferior quality or was not installed correctly. Other possible reasons could be clogged drainages which can cause the water to remain where it is for greater lengths of time.