Flat Roof Gutter Size Calculator

The area that your chosen guttering system can cope with.

Flat roof gutter size calculator.

Simplified app for android phones. An inch of rain is not much but it if falls in half an hour it could flood a gutter. Downpipe and eaves gutter calculator valley gutters generic rain water outlets for flat roofs. Requires flow to be calculated in one of the other calculators.

The effective roof area that will collect the rain which will need to be removed by the guttering. If a roof s various drainage areas call for different size gutters go for the biggest one k style. Total roof area also affects runoff. 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.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. 6 inch 7 960 square feet. The total rainfall and how rapidly it falls will affect the runoff from the roof. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

Then use the chart below to see what size gutter you need. And reduction in down pipe size by using a funnel section. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. There are two things you need to know.

The simple way to calculate gutter sizes. 5 inch 5 520 square feet. Then use the information below to see what size gutter you need. Water pipe size calculator information video water pipe.

As most roofs are not flat this needs to be calculated we ll show you a simple way.