Flat Roof Drain Cover

This table is based on zurn s roof drain vertical requirement for horizontal roof areas at various rainfall rates table.

Flat roof drain cover.

12 inch cast aluminum drain dome strainer. 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. Replaces most popular 12 inch od drain domes 14 15 inch drain bowl for roof drains.

5 0 out of 5 stars 1. Get it as soon as thu oct 1. So often we find that inner drains are high on the roof causing water to pool around them. These types of objects will cause blockage in drain pipes.

More buying choices 25 96 2 used new offers. Use the drain grate also known as a drain cover to drain moderate flows from lawns landscaped areas patios walkways and under downspouts. 12 1 4 inch od x 6 2 inches high self locking. Old style drain strainers.

Take the roof s total square footage and divide by the total square footage handled by one drain. 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. There are three types of drain systems on a flat roof. Free shipping by amazon.

Square drain grate has an open surface area of 28 4 sq. Only 10 left in stock order soon. The result is the number of drains needed. Shop for roof drains at ferguson.

It is very critical to position drains for maximum effect. Twigs seashells and rocks should not be able to get through strainer holes or slots. The above sizing data is offered as a guide only. And a flow rate of 87 gpm.

Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products.