How To Slope A Gutter
If there s standing water it s not pitched properly.
How to slope a gutter. Per 16 ft but this is not always possible. For starters this may not look good. Next place a ladder at the left side of the house and measure from the roof down to the gutter. A gutter over 30 feet needs two downspouts.
Ideally gutters should slope down toward downspouts 1 in. How to determine gutter slope. You want at least a quarter inch of slope for every 10 feet. How to check a gutter s slope.
Use a string level to ensure the string is completely parallel to the ground. As long as there is a slight pitch say 1 2 in. Next to a level fascia board the steeper the slope of the gutter the more it looks out of whack. First determine the location of each one of your downspouts.
For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end. Multiply the number of feet by 1 16 inch to determine the total slope the gutter requires. Start on the end of the gutter farthest from. 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.
It should run at a consistent speed down the gutter to the downspout. A gutter over 30 feet needs two downspouts. It should pitch from the middle toward the downspouts at each end. Get on a ladder after a rainstorm and look in the gutter.
Snap a chalk line between the two and find the spots where the gutter is out of alignment. Once the gutter is properly pitched re install the gutter brackets. Pull the gutter down about 3 quarters of an inch lower than it originally was. The gutter should have a quarter inch of slope per 10 feet.
Put a temporary screw at the back to adjust the pitch. To calculate gutter slope attach one end of a long piece of string to the highest point of your gutter and the other end at the location of your downspout. 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. How to fix gutter slope measure the length of the gutter that you plan to adjust.
The best way to calculate the slope of a gutter run before hanging it is to use a long string and a string level.