You want at least a quarter inch of slope for every 10 feet.
How to adjust gutter slope.
Get on a ladder after a rainstorm and look in the gutter.
For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end.
This simple act can turn problem gutters into an efficient drainage system.
If your gutters don t slope then you only need to adjust the hangers and lower them slightly where necessary to achieve the correct slope.
Gutters need to be pitched toward the downspouts for the water to flow properly.
To adjust the slope of the gutter wearing gloves pop out the gutter pegs on the side and around the corners.
If there s standing water it s not pitched properly.
Multiply the number of feet by 1 16 inch to determine the total slope the gutter requires.
You can unscrew them or use a pry bar to remove the fastener holding the hanger in place lower it the correct amount and refasten.
Use a hammer and crowbar to loosen the gutter.
To correct this yourself you ll need to measure from the peak to the downspout.