Box Gutter Sump Depth

Box gutter slope slope should be within the range of 1 40 to 1 200.

Box gutter sump depth.

The width of the rainhead is to be at least equal to the width of the box gutter and the box gutter needs to. Sumps are to be appropriately sized in accordance with as nzs 3500 3 with a minimum length of 400 mm and when fitted with a high capacity overflow device with a depth of not less than 150 mm when either one or two box gutters enter the sump. The architect usually specifies the gutter width. 60 35 175 25 175 200.

However any width can be entered. State of victoria victorian building authority 2017 published june 2017. The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep. Determining the depth of the box gutter is the first step in sizing materials and components for a roof drainage system that incorporates box gutters and rainheads.

The program does the 50 reduction in area as required by the code. Have a depth at the high end of not less than 75mm. Can you or is it legal to put a side outlet out of a roof sump and not use pops as outlets. Therefore sump depth below base of box gutter 60 ioc 175.

Vertical faces enter the full vertical face area. Have a minimum width of 300mm for commercial installations 200mm for domestic installations. Size determine the minimum box gutter depth. This box gutter has a width of 450 mm.

The minimum sump size is 400mm l 200mm w. Have a sole width which is not reduced discharge at the downstream end without. Have a minimum width of no less than 200mm for a domestic box gutter 300 mm for commercial. Box gutters get a lot of moist leaves and debris and these can shorten its life so the rule of thumb is to have the box gutter material as good or better.

However a wider overflow may increase the length of the sump. Have a minimum depth of 75mm at the high end. Depth of the box gutter consistent with saa hb39 installation code for metal roof and wall cladding section 5 clause 5 7 3 and figure 5 7 3 to prevent internal flooding or damage to the building or contents see figure 2. Experiment with this figure to get the depth of box gutter you require.

February 8 2015 at 4 17 pm. A wider overflow needs less depth of overflow hence the box gutter depth will also be reduced. For commercial projects the minimum allowable width is 300mm. The box gutter depth and the sump length are influenced by the size of the overflow.

You will need to perform this step to determine the minimum depth of the box gutter.