To correct this yourself you ll need to measure from the peak to the downspout.
Slope of a gutter.
If water is dripping behind your gutter it s probably because it was installed without any flashing over the back of the gutter.
To ensure that gutters drain properly make certain they slope inch for every 10 feet toward a downspout.
Get on a ladder after a rainstorm and look in the gutter.
A gutter apron is a bent piece of flashing that tucks up under the shingles and over the gutter.
A gutter over 30 feet needs two downspouts.
For gutter runs longer than 40 feet it s best to pitch the gutter down from the middle to a downspout at each end.
The gutter slope also called the pitch is the amount the gutter tilts down to let rainwater flow out of it.
If gutters slope too severely they don t hold water and water could splash over the sides in heavy rain.
Or you can slope the gutters down from each end toward a single downspout placed in the middle of the run.
The gutter apron will prevent the dripping.
A gutter over 30 feet needs two downspouts.
How to calculate slope for rain gutter installation.
Start on the end of the gutter farthest from.
If gutters are not sloped enough the water will simply pool in the gutters and eventually spill over their sides.
The standard slope for rain gutters is half of an inch for every 10 feet.
If there s standing water it s not pitched properly.
You want at least a quarter inch of slope for every 10 feet.
For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end.
Technically speaking the slope also called the pitch of the gutters is the amount by which the gutters slant downward along the path of the water flow.
Use the bubble on the line level to make sure the line is level the length of the gutter area.
This means that your gutter should be a half inch lower in height at every 10 foot mark until you reach the downspout.
Place the line spirit level on the string.
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.
How to fix gutter slope measure the length of the gutter that you plan to adjust.
Gutters need to be pitched toward the downspouts for the water to flow properly.
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.
Home centers sell a gutter apron in 10 ft.
