Rain Gutter Slope

So what s the ideal amount of slope for your gutters.

Rain gutter slope.

If gutters slope too severely they don t hold water and water could splash over the sides in heavy rain. Most contractors tend to set the slop at one quarter inch per ten feet of guttering. This means that your gutter should be a half inch lower in height at every 10 foot mark until you reach the. 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.

For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end. Use a measuring tape to determine the length of the gutter. Multiply the number of feet by 1 16 inch to determine the total slope the gutter requires. To ensure that gutters drain properly make certain they slope inch for every 10 feet toward a downspout.

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. If gutters don t slope water gathers in them. The amount of collected water increases until it spills over the sides of the gutter. For gutter runs longer than 40 feet it s best to pitch the gutter down from the middle to a downspout at each end.

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. To get started measure the side of the house directly under the gutter to determine its length in feet. Rain gutters should be attached to the fascia and run the entire length of the roof ending with a downspout.