How To Slope Your Gutters

Multiply the number of feet by 1 16 inch to determine the total slope the gutter requires.

How to slope your gutters.

For spans longer than 40 feet it s wise to have a downspout on each end and start the high spot of the gutter in the center. However shorter spans can simply slope in one direction. Then fasten one end of the string at the highest point of the gutter and the other at the spot where the downspout will be. To get started measure the side of the house directly under the gutter to determine its length in feet.

First determine the location of each one of your downspouts. Start on the end of the gutter farthest from. Granade roofing on another awesome seamless gutter project adjusting a section of gutter to get the proper flow of water. For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end.

A gutter over 30 feet needs two downspouts. A gutter over 30 feet needs two downspouts. It should run at a consistent speed down the gutter to the downspout. Snap a chalk line between the two and find the spots where the gutter is out of alignment.

Go to the side of the gutter farthest from the downspout and pour the water in. As a general rule gutter slope is set at 1 4 inch per 10 feet of guttering. The gutter should have a quarter inch of slope per 10 feet. To check the slope of your gutters you ll need a ladder tall enough to safely get to your gutter and a one gallon bucket of water.

Get on a ladder after a rainstorm and look in the gutter. Pull the gutter down about 3 quarters of an inch lower than it originally was. If there s standing water it s not pitched properly. It should pitch from the middle toward the downspouts at each end.

This means the downspout end of the gutter should be set 3 4 of an inch lower than the other end. To correct this yourself you ll need to measure from the peak to the downspout. How to determine gutter slope the best way to calculate the slope of a gutter run before hanging it is to use a long string and a string level. This means that your gutter should be a half inch lower in height at every 10 foot mark until you reach the downspout.

You want at least a quarter inch of slope for every 10 feet. Once the gutter is properly pitched re install the gutter brackets. The standard slope for rain gutters is half of an inch for every 10 feet.