Flat Roof Drainage Cover

Round drain grate also known as a drain cover has an open surface area of 9 1 sq.

Flat roof drainage cover. A gravity drainage system on a flat roof differs from the gutter system you find on residential roofs in two key ways. More attention should be given to the location of a drainage system to avoid future problems. This table is based on zurn s roof drain vertical requirement for horizontal roof areas at various rainfall rates table. 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.

Sewer and drain pipe fittings and 6 in. Watts drainage products rd 300 r series 6 in. Roof drains parts accessories floor drains parts accessories downspout nozzles adaptors couplings fittings backwater valves parts accessories carriers and fixture supports cleanouts access covers flanges parts accessories floor sinks parts accessories fluid controls hydrants interceptors shower drains parts accessories specialty products stainless steel drains value. Flat roof drains scuppers gutters and drainage systems on flat roofs.

A flat roof may use interior drains to collect water from the centre of the roof. And a flow rate of 28 gpm. Take the roof s total square footage and divide by the total square footage handled by one drain. Single wall corrugated pipe for a soil tight fit.

5 0 out of 5 stars 1. 1 16 of 406 results for flat roof drain plastic oddities prd900p 3 pvc roof drain with plastic dome. 5 0 out of 5 stars 1. One of the most overlooked items on a flat roof is the draining system.

No hub cast iron high volume roof drain with ductile iron dome. The result is the number of drains needed. The above sizing data is offered as a guide only. Watts drainage products rd 300 r series 4 in.

Calculate drains needed. Zurn rd2120 ab2 abs main area roof drain 11 7 16 diameter 2 pipe size. Connects to the spee d catch basin drain 6 in. The pipe grate is ada compliant and heel proof.

Inner drains gutters or scuppers each have their own function and deciding which system is best depends on. This video explains the principle of a drain basin.