Roof drains are designed to avert water from pooling on the roof’s surface and prevent roof damage. They do this by diverting water from your roof to the ground. Roof drainage is often overlooked when roof maintenance is carried out, which leads to roof decay. Koala Roofing show’s how essential it is to maintain your roof drainage, so we have put together four different methods that our flat roof customers can employ to drain water from their roofs.
A flat roof is a popular style of roofing. Flat roofs are almost level in contrast to other types of roof styles that are sloped and steeped. Because of this lack of deep sloping, flat roofs harbor stagnant water and clogging, leading to leakage.
So, if you choose to install a flat roof for your home, here are different ways you can drain it.
A siphonic roof drain system is usually used for flat roofs because it drains water faster than other drain system types.
A good siphonic roof system contains an air baffle that prevents air and debris from entering the piping system; the water is then sucked at high velocity into the drain. The drainage process is made exceptionally efficient by the void of air in the piping system and the downward pull of the water.
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Source: “Gutters” by Chris Riley – Under the Creative Commons License
A gutter is a trough placed on the edge of the roof that drains excess water and feeds into a downpipe. Its function is to prevent water from flowing or dripping off roofs uncontrolled -on persons standing below or entering the building and damaging the walls. A gutter’s longevity is only as good as the material used, the most common being aluminum, vinyl, and galvanized steel.
These are used mainly on commercial buildings and buildings with large roofs. They are placed under the roof and shuttle water away. Inner drains are usually positioned at the center of the roof or towards the roof’s slope. They also have protective barriers that keep debris from entering into the pipe.
Source: “Blue on Blue” by Theen Moy – Under the Commons License
A scupper drain consists of an opening in the wall which allows water to drain from the roof to the downstairs gutter and a scupper. They prevent water pooling within the curbing or walls of a building. Scuppers are used in apartments and commercial buildings and sometimes in residential homes constructed with flat roofs.
A flat roof is a good roofing option, but they do not drain as quickly as the other roofing types. So if you have a flat roof, explore one of the drainage systems above and carry out regular roof checks to protect your roof.
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