Gutter Pan Slope

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

Gutter pan slope.

Sectional view of wheelchair at a counter slope condition with grades indicating the algebraic differences and limitations. When adjusting from 1 12 to 1 20 gutter slope. Second view showing double grade break. For roof slopes less than 6 on 12 the upper roof pan is attached to a locking strip soldered to the lower pan.

See example table 8 8a. This grade adjustment can be accounted for in the patching that is required when replacing old curb and gutter sections. The concrete gutter is oftentimes at a different slope than the asphalt lane and its surface is rarely flush with the lane. The slope of the gutter must be transitioned from the standard 1 12 slope to a 1 20 slope.

So what s the ideal amount of slope for your gutters. The lower pan is cleated to the roof deck with the indicated clearances determined by expansion calculations. Figure x02 4 h counter slope conditions. Steep counter slopes will cause some wheelchairs to catch on back rollers and lose drive wheel traction.

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. Most contractors tend to set the slop at one quarter inch per ten feet of guttering. As a general rule gutter slope is set at 1 4 inch per 10 feet of guttering. This means the downspout end of the gutter should be set 3 4 of an inch lower than the other end.

There will be minimal grade adjustments necessary where the flatter gutter pan matches the existing street surface approx.