While flat roofs are easy to install and maintain, they are susceptible to water pooling. This is something that decreases the lifespan of these roofs, as water pools usually accelerate the rate at which the roof and its fasteners deteriorate. Add this to the fact that water accumulation on the roof increases the overall weight bearing down on the roof's structure, and you have a perfect recipe for a roof that needs constant repair.
Luckily, there are ways of improving the effectiveness of a flat roof's drainage system. The following are some of the ways through which you can avoid the damaging effects of water pooling.
Install scupper drains
If you notice that water tends to pool around the edges of your roof, then you need to install scupper drains. Installing these drains at the edge of your roof will help guide any accumulated water away from the edges and towards the downspouts. They will therefore reduce the risks of discoloration and leaks that are common in roofs with edge-pooling problems. The fact that these drains are usually made of galvanized material means that your roof will enjoy long-term protection from the damaging effects of pooling.
Install internal roof drains
If your roof has depressed sections as a result of poor roof installation or constant pooling, you will need to install internal roof drains. This roof drainage system is usually made up of metallic inserts and a system of pipes. The inserts are installed directly under the depressed sections of the roof. They provide an outlet through which accumulated water can escape. This water is then guided away from the inserts, through the building's walls, and then dumped outside through a system of pipes. To ensure effective draining, it is important that the pipes be angled downwards -- in such a way that they take advantage of gravity.
Install a plant carrier
A plant carrier can help enhance the effectiveness of an existing drainage system. This is because, when one is installed in an area that's susceptible to water pooling, the growing plants or seedlings in the carrier will absorb any moisture from the area. This will reduce the overall burden that the existing system has to bear, which will go a long way towards reducing the water accumulation problem on a roof. This is not only a cheap , but also an eco-friendly method of avoiding your water problem.
For additional information, contact a roofing contractor in your area.