Sizing Box Gutters

Please lower the maximum spacing between downspouts to see this effect.

Sizing box gutters.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. Then use the chart below to see what size gutter you need. Adding additional downspouts will require less gutter and downspout volume resulting in smaller gutters downspouts. Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head.

The gutter and downspout size required is highly dependent on the amount of gutter and the spacing of the downspouts. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. This free online box gutter calculator will calculate the size of box gutters and sumps with a side overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage. Gutter sizing step 2 research historical rainfall data gutter sizing step 3 calculate water flow during rainfall extremes gutter sizing step 4 calculate water handling capacity for gutter downspout options.

The side with the maximum flow is used to size the box gutter. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. The total flow is used to size the sump and overflow. Learn more how to storm water design for building sites.

Then use the information below to see what size gutter you need. 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. 5 inch 5 520 square feet.