Flat Roof Drain Pipe

Flat roof drainage capacity of a single drain pipe or leader.

Flat roof drain pipe.

Shop for roof drains at ferguson. A rooftop garden or additional outside living space are the top reasons people choose flat roofs. 4 inch hr. 2 inch hr.

Pooling water has adverse effects on a flat roof. Catchment area and rainfall intensity. The most critical of these issues is the flat roof drainage systems. The main benefit of inner drains is that the system is hidden from view.

Ss525 2006 code of practice for drainage of roofs. If a flat roof drain is too small it can easily become blocked or simply not be in the right area for accurate draining of pooling water. 5 inch hr. 6 inch hr.

The sump receiver is a flat steel plate with a depressed center opening into which the roof drain body flange fits the sump receiver is supported by the lip of the opening in the deck. A flat roof drain is one of the most important features of a flat roof design and they need to be taken care of. 12 500 ft 2. Maximum horizontal projected roof area that can be drained in square feet.

The flat roof must have sufficient slope to allow water to flow towards the roof outlets. Install a french drain one of the top yard drainage solutions to divert water away from problem areas. Rainfall rate inches per hour. In addition to easing the deck opening tolerance requirements the sump receiver distributes the weight of the drain over a larger surface of the deck.

Inner drains are resistant to freezing but can require careful maintenance to prevent problems. Your building and location can help determine which drain will fit your roof needs. The calculations below are meant for drainage from flat roofs where water are expected to spread over the entire flat roof during rain. 3 inch hr.

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. 1 inch hr. Water pooling in a yard can kill grass attract mosquitoes and create mud patches. A flat roof drain can also fail by becoming detached from the roof.

Pipe cross section drainage area. Zurn rd2120 ab2 abs main area roof drain 11 7 16 diameter 2 pipe size. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. No matter the type of drain system for a flat roof as long as it functions correctly this will extend the life of the roof.