Gutter flow the ponded width is a geometric function of the depth of the water y in the curb and gutter section.
Gutter flow width.
5 inch 5 520 square feet.
T flow width.
5 inch 5 520 square feet.
6 inch 7 960 square feet.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
N manning s coefficient.
And thankfully it s relatively easy to fix more on this topic below.
Half round gutter sizing is based on w 0 0182 la 2 5.
I denotes rainfall intensity the roof area in square feet sq m.
The spread is usually referred to as ponded width t as shown in figure 10 10.
Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
6 inch 7 960 square feet.
Curb type gutter calculator solving for flow rate given roadway cross slope longitudinal slope flow width and manning s coefficient.
Then use the chart below to see what size gutter you need.
Where q gutter flow rate n manning s coefficient s x roadway cross slope s longitudinal slope t flow width.
S longitudinal slope.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
W is the width in in.
Curb gutter flow rate.
S x roadway cross slope.
Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
A depressing depth.
Debris clogging up the gutter and or downspout flow.
Then use the information below to see what size gutter you need.