Gutter Dimensions Nz
All dimensions given are nominal.
Gutter dimensions nz. Minimum dimensions for internal gutters shown in figure 52 or requires dimensions to be calculated from e1 as1 whichever is greater. 1 500 2mm in 1m. Gutter style gutters are typically k style and half round styles though custom profile are available. 7500mm with 15mm free board flow capacity.
Cross sectional area of 4125mm smallest dimension at least 50mm. 33 550mm or 29 400mm g 600mm flow capacity. Minimum gutter slopes should be applied to all internal gutters so that. A fall of 1 60 provides even better drainage.
This is an external gutter so using clause e1 figure 15 plot 38 40 m plan area on the vertical axis. 727 litres min or 616 litres min minimum recommended fall. 6 inch 7 960 square feet. Marley spouting is nz designed and manufactured for nz conditions.
Gutters will be the same size for all the roof so use the largest plan area to work out the appropriate size gutter. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. If a roof s various drainage areas call for different size gutters go for the biggest one k style. New zealand building code clause e1 figure 15.
5 inch 5 520 square feet. 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. K style sizes will typically range from 5 to 6. All dimensions given are nominal.
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. Large sized gutter for commercial and industrial applications. 7 and greater are appropriate for churches and larger commercial buildings. 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.
They don t corrode or rust and are ideal for coastal areas with salt laden air. Effective cross sectional area with 15mm free board. 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. 1 500 2mm in 1m minimum downpipe.