Box Gutter Sump Size

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Box gutter sump size.

Learn more how to storm water design for building sites. Overflow box gutters must have independent overflow provision discharging to the atmosphere. The side with the maximum flow is used to size the box gutter. With building design being so restrictive on space these days this is the area where designers must think about how the roofing contractor will make the box gutter comply.

When determining the size of your rainhead you will need to consider such things as rainfall intensity occurrence use of the building and the size of the box gutter. The total flow is used to size the sump and overflow. Layout box gutters must. Each box gutter run must discharge independently to ether a sump or directly out of the building without changing the size of the gutter or changing direction.

Outlets box gutter outlets must discharge through either a rainhead or sump.