When sizing roof drains the limiting factor for the amount of water each drain will carry away is the size of leader therefore increasing leader size decreases the number of drains required.
Roof drain sump pan dimensions.
A sump pan fits a roof drain bowl and secures the drain to the roof.
Roof sumps help the roof shed water more effectively and help eliminate the water pond size if the drain was not installed at the correct height.
One mistake that is commonly made with roof sumps is that they are made with extended flat areas.
For instance poured concrete roofs normally don t need them.
High quality 18 gauge galvanized steel is used for strength and durability.
Roof drain pan lsp 15 diameter primary zurn z100 roof drain bottom outlet no hub connection cast iron clamping collar and cast iron dome.
Roof area is 300 x 500 ft.
They are also produced using stainless steel and aluminum.
The sump is 2 deep and is approx 13 3 4 x 13 3 4 square.
How a sump pan works.
300 x 500 150 000 sq.
Now to have a nicely tapered roof only to lead to a 3 by 3 flat sump is going to make a white.
Step by step sizing of zurn drains step 1.
Building plans will normally specify whether or not a sump pan is needed some roofs don t require a sump pan.
The roof drain bolts to the pan with four bolts supplied with the roof drain the roof drain can be mounted from the top or bottom side.
Calculate total roof area.
Why a sump pan matters.
This roof drain pan flat roof drain kit includes pipe sizes from 2 4 larger pipe size and connection options are available.