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