How To Slope Your Gutters

For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end.

How to slope your gutters. A gutter over 30 feet needs two downspouts. 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. Granade roofing on another awesome seamless gutter project adjusting a section of gutter to get the proper flow of water.

How to fix gutter slope measure the length of the gutter that you plan to adjust. 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. Put a temporary screw at the back to adjust the pitch. The standard slope for rain gutters is half of an inch for every 10 feet.

As a general rule gutter slope is set at 1 4 inch per 10 feet of guttering. This means that your gutter should be a half inch lower in height at every 10 foot mark until you reach the downspout. For example if you have 30 feet of guttering the calculation is 1 4 x 3 0 75 i e. 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 correct this yourself you ll need to measure from the peak to the downspout. A gutter over 30 feet needs two downspouts. Pull the gutter down about 3 quarters of an inch lower than it originally was. It should run at a consistent speed down the gutter to the downspout.

To get started measure the side of the house directly under the gutter to determine its length in feet. It should pitch from the middle toward the downspouts at each end. 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. You want at least a quarter inch of slope for every 10 feet.

The gutter should have a quarter inch of slope per 10 feet. Once the gutter is properly pitched re install the gutter brackets. Multiply the number of feet by 1 16 inch to determine the total slope the gutter requires. Go to the side of the gutter farthest from the downspout and pour the water in.

Get on a ladder after a rainstorm and look in the gutter. Start on the end of the gutter farthest from. If there s standing water it s not pitched properly.