Roof Drains For Flat Roofs Detail

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.

Roof drains for flat roofs detail.

A flat roof may use interior drains to collect water from the centre of the roof. 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. A major maintenance issue shared between all types of roof drains is debris removal.

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. 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. Scuppers are the most effective drainage solution for flat roofs.

The main benefit of inner drains is that the system is hidden from view. The positioning design and installation of a drainage system are one of the most important factors to have a relatively low maintenance roof. Regular cleaning and unblocking of the drains gutters and scuppers is mandatory. One of the most overlooked.

Each of these systems can become clogged by debris. 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. The average flat roof does not have an optimized draining system.