The internal downpipe connected to the sump. Usually the reason why the downpipes are placed internally is for aesthetic reasons, it can also be if the building is built on the boundary. The box gutter brackets with the roof sheeting can be seen, this is a system used to support the box gutter and make it secure and safe to walk on.
Above is where the roof slopes into the box gutter. The box gutter is up against the parapet and as seen in the middle picture it is supported by gutter brackets. Box gutters are a minimal 300 wide by 100 deep in size, they shouldn't be designed any smaller than this. The size of the box gutter depends on several factors. These are the rainfall intensity, roof area, the risk factor and the volume of water that is to be drained from the roof.
Adjustable box gutter bracket by Jonda Pty. Ltd. http://www.jonda.com.au/files/AdjustableBoxGutterBrackets.pdf
The internal downpipe connected to the sump. Usually the reason why the downpipes are placed internally is for aesthetic reasons, it can also be if the building is built on the boundary. The box gutter brackets with the roof sheeting can be seen, this is a system used to support the box gutter and make it secure and safe to walk on.
Above is where the roof slopes into the box gutter. The box gutter is up against the parapet and as seen in the middle picture it is supported by gutter brackets. Box gutters are a minimal 300 wide by 100 deep in size, they shouldn't be designed any smaller than this. The size of the box gutter depends on several factors. These are the rainfall intensity, roof area, the risk factor and the volume of water that is to be drained from the roof.
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