Determining Gutter Size

The steeper a roof s pitch the more windblown rain it can collect.

Determining gutter size.

Run the tape measure from 1 corner of the gutter as far as you can go toward. Multiply length peak to. Ratio of depth to width of gutter select gutter ratio 0 125x 0 25x 0 375x 0 5x 0 625x 0 75x 0 875x 1x 1 125x 1 25x 1 375x 1 5x 1 625x 1 75x 1 875x 2x calculate drainage reset. The standard is about inch per 10 feet.

See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. Get 7 or 8 inch gutters. Increasing the pitch increases a gutter s. 5 inch standard k style gutter shop 5 gutterbrush.

Place a sturdy 20 ft 6 1 m ladder on 1 side of your house so that you can reach. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted. Rainfall intensity is measured in a 5 minute interval translated. You have three options.

Find the rainfall intensity for your locale. Measure the roof to get the watershed area the area from which water will run off. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. How to calculate gutter and downspout capacity step 1.

Adjusting for pitch and rainfall. Measuring existing gutters 1. How do you calculate gutter size. Measure the height of.

Measure the length of each gutter run.