Minimum Box Gutter Depth

It may be lined with epdm rubber metal asphalt or roofing felt and may be concealed behind a parapet or the eaves or in a roof valley.

Minimum box gutter depth.

All domestic box gutters must be a minimum of 200mm wide and 75mm deep. Box gutters are essentially placed between parallel surfaces as in a valley between parallel roofs or at the junction of a roof and. Can i change the measurements on this box gutter flashing. Sides must be vertical.

The width and depth of the pull or junction box depends on the installed raceways. The minimum depth required for the box gutters that make up this roof drainage system is 125 mm. The depth shown in the calculations is at the upstream 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.

Unless a raceway enters the back of the box no requirement specifies the width or depth. The line will correspond to a minimum box gutter depth. Box gutters allowable width slope and length. The minimum length required for this box is 16 inches see figure 5.

This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg. You can get industrial commercial box gutters in a huge range of size. Rainhead overflow or specific box gutter overflow must be at least 30mm below the height of the back of the box gutter. It can handle almost all the roofing applications.

The line that you draw will complement the minimum gutter depth. Required gutter slope 1 40 to 1 200. A box gutter internal gutter parallel gutter or trough gutter is a rain gutter on a roof usually rectangular in shape. There is always some confusion as to how the slope affects the overall depth.

Have a sole width which is not reduced discharge at the downstream end without. The width of the rainhead is to be at least equal to the width of the box gutter and the box gutter needs to. Determine minimum gutter depth starting at the gutter gradient intersection draw a line up the design graph for a freely discharging box gutter chart in your copy of the standard. Must have a constant slope between 1 40 and 1 200.

Have a minimum width of 300mm for commercial installations 200mm for domestic installations. Box gutters must be straight no bends. Sizes the depth shown of the box gutter is the depth at the upstream end. We can manufacture this box gutter to your custom measurements.

Down pipe must be vertical from sump not to the side minimum sump length is 400mm. Box gutters should have a minimum fall of 1.