Roof Drain Connection Detail

Roof drains roof drains conventional roof drainage systems sizing worksheet the number of roof drains for a given project can be determined by the ratio method which indicates that roof drains be installed at the minimum of one roof drain for each 10 000 sq ft.

Roof drain connection detail.

To select the proper roof drain the following information must be known. Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs. 2 ifno longerthan five feet. First and foremost be sure to comply with all local plumbing codes.

Buried or underground roof drainage downspout defects clogging overflowing holes corrosion leaks that cause wet basements or crawl areas proper installation of buried downspout extensions proper installation of french drains seepage pits at flat sites gutter downspout defects cause wet basements crawl areas questions answers about installing maintaining repairing buried roof. The distinguishing feature of a siphonic roof drain is the air baffle. When removing hardware like clamping rings and domes you ll notice a very different mounting design. 3 plumbing vent 6 above roof and 10.

The rainfall for a given locality is found in figure 4 or in figure 5. Sink trap arm 1 1 2 ifno longerthan 42. 1 1 2 ifno longerthan 42. The zurn roof drains and drain accessories represent more than 100 years of experience in supplying engineered roof drainage equipment to the construction market.

This air baffle is engineered and tested to prevent air from entering the piping system at peak flows. Download free high quality cad drawings blocks and details of roof drains organized by masterformat. Other than the baffle a siphonic roof drain has the same. No hub connection y a siphonic roof drain looks much like a traditional roof drain.

4 x3 closed bend a. When selecting a roof drain note. Ifno longerthan five feet tub trap.