Rain Gutter Slope

The amount of collected water increases until it spills over the sides of the gutter.

Rain gutter slope.

To get started measure the side of the house directly under the gutter to determine its length in feet. If the gutter run measures longer than 40 feet 12 2 m it should be positioned to pitch down from the middle aimed toward a downspout at each end. To ensure that gutters drain properly make certain they slope inch for every 10 feet toward a downspout. Most contractors tend to set the slop at one quarter inch per ten feet of guttering.

The gutter slope also called the pitch is the amount the gutter tilts down to let rainwater flow out of it. Multiply the number of feet by 1 16 inch to determine the total slope the gutter requires. The standard slope for rain gutters is half of an inch for every 10 feet. The right rain gutter slope is subtle enough that you won t notice it from the street but also steep enough so that it easily sheds water towards your downspout.

If gutters slope too severely they don t hold water and water could splash over the sides in heavy rain. Rain gutters should be attached to the fascia and run the entire length of the roof ending with a downspout. If gutters don t slope water gathers in them. Or you can slope the gutters down from each end toward a single downspout placed in the middle of the run.

So what s the ideal amount of slope for your gutters. So if you have a 25 foot section of guttering you should set the downspout end of the gutter 5 8 of an inch lower 1 4 x 2 5 5 8 than the other end. Use a measuring tape to determine the length of the gutter.