A rainwater sump catches any debris or unwanted materials from travelling down the drain pipe and into any drains.
Box gutter sump.
It is easier to mark and cut the spigothole prior to fitting the sumpinto the box gutter.
The water is drained via downpipe nozzles or via a sumps downpipes built into it.
The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep.
Code box gutter requirements the minimum width allowed for domestic projects is 200mm.
Box gutters must be straight no bends.
A box gutter is defined as a graded channel generally of a rectangular shape for the conveyance of rainwater within the building footprint including adjacent to a wall or parapet.
How much fall should i have on a box gutter.
Sides must be vertical.
The theoretical down pipe diameter is shown for reference purposes only.
A good box gutter design will have falls along its length together with sumps to collect water before it is fed into large downpipes.
Choose an available size or any other size and enter that for the calculation of the sump.
Sumps are attached between a box gutter and a downpipe where they collect stormwater before sending it down the downpipe.
This is a good size for the required flow.
Must have a constant slope between 1 40 and 1 200.
This ensures that there is no blockage of any kind meaning that all of your roofing accessories can function at their optimal level.
A box gutter is given its name as it is usually boxed into the middle or edge of the roof.
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.
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.
For commercial projects the minimum allowable width is 300mm.
Box gutters are deemed to satisfy the performance requirements of the national construction code if they are certified to meet.
The outlet must be no further than the diameter of the outlet to the centre of the outlet.
Sumps are usually attached between a box gutter and the downpipe.
Box gutters should have a minimum fall of 1.
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 rainwater goods roofing supplies queensland sheet metal.
The depth shown of the box gutter is the depth at the upstream end.
The gutter collects the water and disposes of it through the drainpipe.
The spigotcan also be fitted from inside the sump this allows the downpipe to be fitted up to the sump.
For the associated box gutter outlet.