Flat Roof Drain Cover

Take the roof s total square footage and divide by the total square footage handled by one drain.

Flat roof drain cover.

And a flow rate of 87 gpm. Twigs seashells and rocks should not be able to get through strainer holes or slots. This table is based on zurn s roof drain vertical requirement for horizontal roof areas at various rainfall rates table. These types of objects will cause blockage in drain pipes.

Calculate drains needed. 5 0 out of 5 stars 1. It is very critical to position drains for maximum effect. 12 inch cast aluminum drain dome strainer.

Shop for roof drains at ferguson. There are three types of drain systems on a flat roof. The above sizing data is offered as a guide only. Use the drain grate also known as a drain cover to drain moderate flows from lawns landscaped areas patios walkways and under downspouts.

The result is the number of drains needed. Replaces most popular 12 inch od drain domes 14 15 inch drain bowl for roof drains. Most strainers or domes that cover a drain on flat roofs are poorly designed because they block smaller debris and the strainer becomes clogged preventing any water flow. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products.

Free shipping by amazon. More buying choices 25 96 2 used new offers. Only 10 left in stock order soon. Aka watts b2kdm 76 00 sale 57 75.

So often we find that inner drains are high on the roof causing water to pool around them. Get it as soon as thu oct 1. Old style drain strainers. 1 16 of 413 results for flat roof drain plastic oddities prd900p 3 pvc roof drain with plastic dome.

Most draining systems on flat roofs have a poor design or are not correctly installed.