Box Gutter Sump Installation

The side with the maximum flow is used to size the box gutter.

Box gutter sump installation.

Outlets box gutter outlets must discharge through either a rainhead or sump. Beowulf builders bringing old homes into the future this video explains how you go about installing a boxed gutter. 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. The total flow is used to size the sump and overflow.

Support the entire weight of the gutter and sumps when full of water as well as a trafficable load at any point in the gutter and sumps. For the associated box gutter outlet. 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. Overflow devices need to discharge to the atmosphere in such a way as to prevent damage to buildings and property.

If the box gutter has no overflow provisions this causes a waterfall over the sides of the box gutter typically running down the walls. Layout box gutters must. A rainhead or sump is a container located between the gutter and downpipe that aids the flow of water away from the roof. Rainheads are an essential design element for buildings where internal box or trough gutters are used.

The outlet of the box gutter may be blocked by debris or the box gutter outlet simply cannot discharge the water fast enough. It sounds like you have an overflow situation. At this stage plan the connection to the downpipe. 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.

Sump with a side overflow device sumps do require an increase in the depth of flow in the box gutter and gutters are to be fitted with either. If you have any questions about the vid.