Gutter Pan Slope

For roof slopes less than 6 on 12 the upper roof pan is attached to a locking strip soldered to the lower pan.

Gutter pan slope.

Second view showing double grade break. The concrete gutter is oftentimes at a different slope than the asphalt lane and its surface is rarely flush with the lane. 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. The slope of the gutter must be transitioned from the standard 1 12 slope to a 1 20 slope.

As a general rule gutter slope is set at 1 4 inch per 10 feet of guttering. There will be minimal grade adjustments necessary where the flatter gutter pan matches the existing street surface approx. Let s explore that further. Most contractors tend to set the slop at one quarter inch per ten feet of guttering.

Steep counter slopes will cause some wheelchairs to catch on back rollers and lose drive wheel traction. This means the downspout end of the gutter should be set 3 4 of an inch lower than the other end. Gutter counter slope is the angle point or grade change where the down slope of the curb ramp meets the up cross slope of the gutter. Sectional view of wheelchair at a counter slope condition with grades indicating the algebraic differences and limitations.

So what s the ideal amount of slope for your gutters. When adjusting from 1 12 to 1 20 gutter slope. See example table 8 8a. Figure x02 4 h counter slope conditions.

For example if you have 30 feet of guttering the calculation is 1 4 x 3 0 75 i e.