Gutter Dimensions Nz

Gutters will be the same size for all the roof so use the largest plan area to work out the appropriate size gutter.

Gutter dimensions nz. The largest plan area is area a at 38 m. Cross sectional area of 4125mm smallest dimension at least 50mm. Box gutter 125 box gutter 175 box gutter 300 quadline gutter squareline colonial quad gutter half round gutter box gutter 115 quarter round gutter fascia 135 fascia 155 fascia 185 round downpipe 55x75mm downpipe 95x130mm downpipe. New zealand building code clause e1 figure 15.

The only mention of a required minimum slope for internal gutters in the compliance documents is in e2 as1 covering butyl rubber lined gutters where it requires a fall of 1 100. If a roof s various drainage areas call for different size gutters go for the biggest one k style. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. K style sizes will typically range from 5 to 6.

Gutter style gutters are typically k style and half round styles though custom profile are available. Marley spouting is nz designed and manufactured for nz conditions. All dimensions given are nominal. 7500mm with 15mm free board flow capacity.

A fall of 1 60 provides even better drainage. 7 and greater are appropriate for churches and larger commercial buildings. They don t corrode or rust and are ideal for coastal areas with salt laden air. All dimensions given are nominal.

This is an external gutter so using clause e1 figure 15 plot 38 40 m plan area on the vertical axis. Effective cross sectional area with 15mm free board. Effective cross sectional area. 727 litres min or 616 litres min minimum recommended fall.

Box gutter 125 box gutter 175 box gutter 300 quadline gutter squareline colonial quad gutter half round gutter box gutter 115 quarter round gutter fascia 135 fascia 155 fascia 185 round downpipe 55x75mm downpipe 95x130mm downpipe. 5 inch 5 520 square feet. 1 500 2mm in 1m minimum downpipe. 33 550mm or 29 400mm g 600mm flow capacity.

1 500 2mm in 1m. Minimum gutter slopes should be applied to all internal gutters so that. Appendix 1 gives rainfall intensities around new zealand and figure 16 provides a graph from which to determine internal gutter sizes based on a rainfall intensity of 100 mm hour. 6 inch 7 960 square feet.