Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
Gutter sizing nz.
Then use the chart below to see what size gutter you need.
New zealand building code clause e1 table 5.
Marley spouting is nz designed and manufactured for nz conditions.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
Adding additional downspouts will require less gutter and downspout volume resulting in smaller gutters downspouts.
The gutter and downspout size required is highly dependent on the amount of gutter and the spacing of the downspouts.
Made form galvsteel zincalume colorsteel.
5 inch 5 520 square feet.
Then read off the.
The largest plan area is area a at 38 m.
Gutters will be the same size for all the roof so use the largest plan area to work out the appropriate size gutter.
This is an external gutter so using clause e1 figure 15 plot 38 40 m 2 plan area on the vertical axis.
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.
New zealand building code clause e1 figure 15.
Work out the minimum gutter capacity or cross sectional area required and use this to select the right gutter.
Nz s leading provider of steel roofing guttering products for residential commercial customers.
They don t corrode or rust and are ideal for coastal areas with salt laden air.
Gutters will be the same size for all the roof so use the largest plan area to work out the appropriate size gutter.
The largest plan area is area a at 38 m 2.
Covid19 update dimond auckland will be operating from monday 30th august under the safety guidelines for businesses during level 2.
For extreme conditions where a bold look is desired.
To ensure that water is safely disposed of gutters and downpipes should be sized and installed so that the expected amount of water can be controlled with minimal chance.
The downspout and gutter sizing calculator is located on the tools cad and apps page of the smacna website.
Bu509 sizing gutters and downpipes.
6 inch 7 960 square feet.
Please lower the maximum spacing between downspouts to see this effect.
From 13 50 add to cart.
This ensures the gutter will have sufficient capacity for all other smaller roof sections on the building.
Product description gutters and downpipes are the most common method of disposing of surface water from buildings.
Figure 3 new zealand building code clause e1 figure 15.
