Box Gutter Sizes Australia

Five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country.

Box gutter sizes australia. Must have a constant slope between 1 40 and 1 200. Material shall be protected steel sheet to australian standard as1397 with a minimum yield stress of 550mpa and an am100 az150 coating with an oven baked paint film of selected colour or a plain am125 az150 coating. Have a sole width which is not reduced discharge at the downstream end without. Box gutters must be straight no bends.

The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep. State of victoria victorian building authority 2017 published june 2017. Sizes the depth shown of the box gutter is the depth at the upstream end. C square gutter external mitre.

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. Have a minimum width of 300mm for commercial installations 200mm for domestic installations. 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. Learn more how to storm water design for building sites.

Down pipe must be vertical from sump not to the side minimum sump length is 400mm. But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep rainwater from overflowing.