Box Gutter Size Calculator

This calculator has been created and designed for excel 2013 for windows.

Box gutter size calculator.

15 m is a practical maximum gutter length to be served by a downspout. Gutter sizing step 3 calculate water flow during rainfall extremes gutter sizing step 4 calculate water handling capacity for gutter downspout options. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Northclad gutter size requirement calculator this calculator uses current data to calculate the required size of gutter as well as number and size of downspouts based on your input.

Based on the location roof design and overflow types the calculator provides the allowable gutter types downpipe sizes and whether the selected overflow measures are adequate. The side with the maximum flow is used to size the box gutter. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Gutter sizing step 1 determine roof area to be drained.

The capacity of a sloped rectangular gutter may be approximated by using a gutter cross section area not less than that of a semicircular gutter and a depth to width ratio of at least 0 75. We recommend using this calculator as a basic tool to begin determining the requirements for your drainage system however all information should be verified by. The total flow is used to size the sump and overflow. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

Then use the chart below to see what size gutter you need. To limit the effects of thermal expansion in gutters 50 ft. Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head. Note this program is free to use and is based on the australian plumbing code as nzs 3500 3 2015.

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. But can be used for anywhere in the world provided you know the rainfall intensity requirements for your local area. It is a ms excel file and uses data contained in ncc volume two for the calculations. Calculate roof area to be drained by your gutter system and note roof pitches.

Then use the information below to see what size gutter you need. 6 inch 7 960 square feet. 5 inch 5 520 square feet. 5 inch 5 520 square feet.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. Find out how this is a simplified version of the other box gutter calculators.