How To Determine Gutter Size

For a 5 inch k style gutter the square footage should be up to 5 500 sq ft and for a 6 inch k style gutter the square footage should be upto 7 900 sq ft.

How to determine gutter size. See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. Measuring existing gutters 1. Download our free gutter guide for more helpful information. 5 10 pack kit 40.

After you have calculated the square footage use following calculations. Multiply length peak to. Measure the height of. You can also work with a professional who knows the climate in your area and who understands what size of gutter you need to work with the roof that you have.

How do you calculate gutter size. They ll cost more and probably require a custom order through a professional installer. Adjusting for pitch and rainfall. Which size of gutter guard by gutterglove do you need.

Find the width of the gutters. For half rounds 5 inch should be used for up to 2500 sq feet and 6 inch for up to 3 840 sq ft. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. Measure the length of each gutter run.

If your gutter is 5 inches wide or less you ll need our 5 inch kit. Get 7 or 8 inch gutters. You have three options. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted.

Increasing the pitch increases a gutter s. The steeper a roof s pitch the more windblown rain it can collect. How to calculate gutter and downspout capacity step 1. Find the rainfall intensity for your locale.

12 inches or more. 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 drainage area by 1 3.

The standard is about inch per 10 feet. Rainfall intensity is measured in a 5 minute interval translated. Measure the roof to get the watershed area the area from which water will run off. 3 4 inch downspouts likewise a comparison between 3 inch round downspout and 4 inch round downspout.