Roof Drain Pipe Size For A 170 Sq Ft Roof

The next step is to determine each roof area that will be served by a separate leader drain pipe scupper or downspout.

Roof drain pipe size for a 170 sq ft roof.

The roof drain typically will not remove the water as fast as you may think. Divided by the 4 600 sq. Quick view compare. Each drain can handle 4 600 sq.

1 inch hr. Wade 3012 roof drain 9 3 4 no hub bowl w ci dome. The result is a roof collapse. Shop for roof drains at ferguson.

Roof area is 300 x 500 ft. Rainfall rate inches per hour. 4 inch hr. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products.

For larger roof drains the pipe may. Maximum horizontal projected roof area that can be drained in square feet. 5 19 6 sq in. Step by step sizing of zurn drains step 1.

Rd rd 10 000 4 x 3 75 9 375 sq ft. Equals 32 6 or 33 drains required. 300 x 500 150 000 sq. The result is the number of drains needed.

4 leader size is selected. Roof drain connected to a 6 in. Take the roof s total square footage and divide by the total square footage handled by one drain. Calculate total roof area.

Froet 100clp nh dual outlet drain low profile. Or less in diameter the piping will be larger in diameter than the roof drain. To size the vertical roof drain for the same parameters 5 000 square feet of room area and 6 per hour of rain consult table 1106 2 figure 3. To convert to an area for use in table 1108 2 do this.

6 inch hr. 2 inch hr. Divide total roof area by area found in step 3 to obtain the number of drains required example. Pipe cross section drainage area.

Each drain will carry away is the size of leader therefore increasing leader size decreases the number of drains required. Quick view compare choose options. 5 inch hr. For example a 4 in.

12 500 ft 2. Following this logic it is possible that for roof drains 6 in. Determine the size of leader to be used. 50 000 4 400 11 36.

Canplas frank pattern froet josam marathon mifab miro pipe support modi systems olympic plastic oddities portals plus sioux chief smith thunderbird the vault wade. Or 12 drains required. Sizing a roof water drain. Sizing data for conventional.

Flat roof drainage capacity of a single drain pipe or leader. 3 inch hr. Horizontal drain 10 000 sq ft. Enter table 1108 2 until you find a diameter pipe that will carry 9 375 sq ft.

The first step in sizing a roof drain is to calculate the surface area of the roof that the drains will be covering as well as the average hourly rainfall rate at the building location.