Box Gutter Sizes Nz

Leaking box gutters cost new zealand industry millions of dollars every year in production disruption.

Box gutter sizes nz.

All dimensions given are nominal. Design of eaves gutters box gutters downpipes to the australian national plumbing code as nzs 3500 3. For extreme conditions where a bold look is desired. New zealand building code clause e1 figure 15.

Effective cross sectional area. Metalcraft roofing is part of united industries limited. All dimensions given are nominal. Calculators for designing eaves gutters box gutters downpipes pipes and open channels etc to australian standards.

Box gutter 125mm conceals the sheet ends at the eave line and looks great with profiled longrun sheeting or tile roofing internal and external brackets are available in this profile and it is suitable for use with fascia 185 fascia 155 and fascia 135. The minimum size of a sump is 400mm x 200mm minimum width of box gutter and 150mm deep. Effective cross sectional area with 15mm freeboard. The largest plan area is area a at 38 m.

But the main reason it is a box gutter is because it is boxed in on all sides. A box gutter may look like a box because of its boxy shape. 7500mm with 15mm free board. Available in zincalume galvsteel colorsteel endura and colorsteel maxx.

They don t corrode or rust and are ideal for coastal areas with salt laden air. The traditional box shape has been specifically designed for heavy rainfall intensity where fewer downpipes are desired. This free online box gutter calculator will calculate the size of box gutters and sumps with a side overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage. The side with the maximum flow is used to size the box gutter.

This is an external gutter so using clause e1 figure 15 plot 38 40 m plan area on the vertical axis. 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. Gutters will be the same size for all the roof so use the largest plan area to work out the appropriate size gutter. Leading to a reduction in gutter size with the resultant loss of valuable water.

Offering a striking look to more traditional homes it looks equally at home on a modern contemporary house. The total flow is used to size the sump and overflow.