Gutter Flow Width
N manning s coefficient.
Gutter flow width. I denotes rainfall intensity the roof area in square feet sq m. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Where q gutter flow rate n manning s coefficient s x roadway cross slope s longitudinal slope t flow width. Curb type gutter calculator solving for flow rate given roadway cross slope longitudinal slope flow width and manning s coefficient.
If a roof s various drainage areas call for different size gutters go for the biggest one k style. 5 inch 5 520 square feet. And thankfully it s relatively easy to fix more on this topic below. A depressing depth.
W is the width in in. D flow depth at curb. If a roof s various drainage areas call for different size gutters go for the biggest one k style. Leaves shingle granules sticks from broken tree limbs even plastic bags all of them frequently find their way into your gutters.
6 inch 7 960 square feet. 5 inch 5 520 square feet. The spread is usually referred to as ponded width t as shown in figure 10 10. T flow width.
S x roadway cross slope. Debris clogging up the gutter and or downspout flow. Half round gutter sizing is based on w 0 0182 la 2 5. It s the most common reason for overflowing gutters.
6 inch 7 960 square feet. S longitudinal slope. Curb gutter flow rate. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.