Roof Slope Gutter Clearance

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

Roof slope gutter clearance.

A roof with area 45 m 2 can be drained with a gutter with slope 1. Roof pitch clearance below extended roof line 0 in 12 2 in 12 1. Gutter can be run level for appearance but addition downspout will be necessary see section on proper gutter and downspout sizing. 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.

You can measure pitch with a 2 foot level and a tape measure. If gutters slope too severely they don t hold water and water could splash over the sides in heavy rain. There are two factors that go into determining gutter position on the eave the pitch of the gutter and the roof slope. If gutters don t slope water gathers in them.

Hold one end of the level against the roof level it and then measure the distance between the roof and the underside of the level at its midpoint which gives you a 12 inch run. Gutter should be pitched 1 16 or greater per foot for proper drainage. Gutter does not need very much grade slope to work properly. Gutter should be pitched 1 16 or greater per foot for proper drainage.

A subtle slope is b. The steeper a roof s pitch the more windblown rain it can collect. The downspout can be 75 mm. Click show more for more information contact information and update notes.

From the table above a gutter with diameter 100 mm 4 inches can be used. The gutter slope also called the pitch is the amount the gutter tilts down to let rainwater flow out of it. Most contractors tend to set the slop at one quarter inch per ten feet of guttering.