Roof Drains For Flat Roofs Detail

The average flat roof does not have an optimized draining system.

Roof drains for flat roofs detail.

Rain gutters are the most common drain system in use for all types of roofs. Flat roof drains scuppers gutters and drainage systems on flat roofs. The main benefit of inner drains is that the system is hidden from view. Each of these systems can become clogged by debris.

A flat roof may use interior drains to collect water from the centre of the roof. Scuppers are the most effective drainage solution for flat roofs. These drains are like the drain at the bottom of your shower except that the roof drain has a larger strainer to protect it from debris. A drain that is placed inside a basin makes for the most practical design the next video shows a quick way to tie an existing drain to a new roof.

Inner roof drains are used on flat roofs and include a low section or channel that collects water and feeds it into a concealed drain that leads to an underground drainage system. Roof drains on flat roofs are one of the most problematic objects. Inner drains are resistant to freezing but can require careful maintenance to prevent problems. The positioning design and installation of a drainage system are one of the most important factors to have a relatively low maintenance roof.

A gravity drainage system on a flat roof differs from the gutter system you find on residential roofs in two key ways. With this system large square openings are made along the edge of the roof that shoot the water away from the side of the building. Regular cleaning and unblocking of the drains gutters and scuppers is mandatory.