Tapered from the bottom of the box gutter to the downpipe if required.
Box gutter sump size.
However any width can be entered.
Experiment with this figure to get the depth of box gutter you require.
They collect storm water before it is carried away by the downpipe and they also serve to catch any debris before it enters the downpipe.
Sumps are usually attached between a box gutter and the downpipe.
Trial box gutter width the minimum width allowed for domestic projects is 200mm.
Sizes the depth shown of the box gutter is the depth at the upstream end.
Sumps can be made to order but are commonly manufactured in either 100mm and 150mm depths.
Overflow devices need to discharge to the atmosphere in such a way as to prevent damage to buildings and property.
Trial box gutter width the minimum width allowed for commercial projects is 300mm for domestic projects 200mm.
Experiment with this figure to get the depth of box gutter you require.
Learn more how to storm water design for building sites.
But cannot be reduced to less than the box gutter width.
50mm clearance on both sides.
Vertical faces enter the full vertical face area.
Box gutters must be straight no bends.
Colorbond box gutter measures 150mm x 150mm x 150mm.
The width can also be any shape.
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.
Box gutters should have a minimum fall of 1.
For the associated box gutter outlet.
Must have a constant slope between 1 40 and 1 200.
How much fall should i have on a box gutter.
A box gutter is given its name as it is usually boxed into the middle or edge of the roof.
The rectangular overflow width is equal to the box gutter width less 100mm.
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.
Box gutter gradients shall not be flatter than 1 200 for sole widths equal to or less than 600mm wide.
If draining to a sump with a vertical overflow in the middle of the box gutter use this calculator.
The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep.
Deviations from the gradient must be smooth and prevent towards the outlet without a proportional permanent ponding.
The outlet must be no further than the diameter of the outlet to the centre of the outlet.
Sides must be vertical.
Custom design the width of the rain water head can be increased to any width.