Box Gutter Sizes Nz

New zealand building code clause e1 figure 15.

Box gutter sizes nz.

Metalcraft roofing is part of united industries limited. Gutters will be the same size for all the roof so use the largest plan area to work out the appropriate size gutter. All dimensions given are nominal. 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.

This is an external gutter so using clause e1 figure 15 plot 38 40 m plan area on the vertical axis. The side with the maximum flow is used to size the box gutter. Leading to a reduction in gutter size with the resultant loss of valuable water. Marley spouting is nz designed and manufactured for nz conditions.

Effective cross sectional area with 15mm freeboard. The largest plan area is area a at 38 m. 7500mm with 15mm free board. Leaking box gutters cost new zealand industry millions of dollars every year in production disruption.

The traditional box shape has been specifically designed for heavy rainfall intensity where fewer downpipes are desired. For extreme conditions where a bold look is desired. Dimond box 175 gutter allows rainwater or snow to be drained quickly and because of its large size it is also easy to clean out. The total flow is used to size the sump and overflow.

But the main reason it is a box gutter is because it is boxed in on all sides. 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. 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.

All dimensions given are nominal. Design of eaves gutters box gutters downpipes to the australian national plumbing code as nzs 3500 3. A box gutter may look like a box because of its boxy shape. Offering a striking look to more traditional homes it looks equally at home on a modern contemporary house.

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. Calculators for designing eaves gutters box gutters downpipes pipes and open channels etc to australian standards.