Drainage systems for flat roofs are an important part of a flat roofing system. Mobley Brothers Roofing and Renovation list the most popular drainage systems for flat roofs below. They are a leading provider of outstanding commercial roofing services since 2007. We have an A+ Better Business Bureau rating. Compared to sloped roofs, flat ones can’t fully capitalize on gravity to drain water effectively and efficiently. Although they are pitched to some extent, they usually require extraordinary drainage systems to prevent damaging ponding and dry themselves out with little human intervention.
Drainage Systems for Flat Roofs
Every day residential property gutters are designed to be used for commercial roofing systems if they have 2% or more of a slope. These are borderline flat roofs, so they are still pitched enough to channel the water into the gutters and downspouts naturally by design.
Any experienced roofing contractor would attest that scuppers are perfect for flat roofs with perimeter barriers like parapets. Basically, scuppers are open holes strategically cut into enclosures. Primary scuppers might be accompanied by second ones, which are located higher, for faster drainage. These drains connect to either downspouts or protruding chutes to direct the water away from the property.
Unlike the types of drainage systems above, inner drains are out of view. They channel the water from the roof to concealed pipes and then to a drainage system below ground. While they can be difficult to maintain, they are less likely to freeze and help keep the building exterior clean.
Siphonic Roof Drains
These drainage components rely on siphoning instead of depending heavily on gravity. As a result, they can force the movement of water fast with horizontal leaders and minimal drains. Any honest roofing contractor knows the siphonic drainage system is the most expensive on the market, but it is worth every penny.
Consult Us for a Free Estimate
Consult Mobley Brothers Roofing and Renovation to figure out the most suitable drainage solution for your flat roof. Call (865) 216-3274 or (615) 906-1195 to set up an appointment with us and get a free estimate in Knoxville or Lebanon, TN.