When selecting a roof drain note.
In wall roof drain.
Recommended for installation in flat areas with decks that are constructed of steel wood or concrete these roof drains are suitable for many installations.
This is the purpose of a venting system.
Commonly used on flat commercial roofs siphonic drains allow for a minimal number of drains and all of the drains can be connected to a single leader.
No hub cast iron high volume roof drain with ductile iron dome.
For one wall add 50 percent of the wall area to the roof area figures.
Where vertical walls project above a roof so as to permit storm water to drain to the roof area below the adjacent roof area may be computed from table 11 1 as follows.
The drain in the toilet bowl is basically a p trap.
First and foremost be sure to comply with all local plumbing codes.
Roof drains watts roof drains provide flexible solutions for specifiers and installers in any commercial roof application.
As water goes down a drain air is needed to equalize the pressure in the drain line.
Roof drains from zurn include combination primary overflow control flow dual outlet siphonic retrofit and more which cater from educational to commercial needs.
1106 4 side walls draining onto a roof.
Drain pipes take the wastewater to the soil stack.
A siphonic roof drain utilizes siphoning as a drainage mechanism resulting in drainage that is faster than that on any other type of roof drain.
Behind the wall where you can t see a vent line and drainpipe lead to a soil stack which is the control center of the wastewater system.
Roof drains provide effective internal drainage of water from the roof surface and are a practical year round solution to removing water from the roof surface in any weather or season.
Cast iron roof drain with 2 in.
To select the proper roof drain the following information must be known.
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.
The zurn roof drains and drain accessories represent more than 100 years of experience in supplying engineered roof drainage equipment to the construction market.
Watts drainage products rd 300 r series 6 in.
If the drain lines in your home have poor venting as in figure a for example water rushing down the drains will pull water from nearby p traps.
Our exclusive dual functional structural deck flange and combination roof drains streamline specifications saving installation time and labor.
Through the stack sewer gases are carried up to the roof through vent lines.
