Internal Copper Gutter Minimum Slope

Most contractors tend to set the slop at one quarter inch per ten feet of guttering.

Internal copper gutter minimum slope.

With the exception of membrane roofs water from internal gutters must discharge into a rainwater head or to an internal outlet as shown in e2 as1 figures 63 a and b and figures 64 b or c see figure 3. Lower slopes are possible under certain conditions using modified details. Table 8 1b shows the minimum recommended slopes using these special details. The modified details are discussed below.

This brings up another important rule to keep in mind. Expansion joints may also be required at changes in gutter width or depth at corners and at end conditions. All guttering must slope toward the nearest downspout. Table 8 1a shows the recommended minimum slopes for various copper roofing systems using the details shown throughout this handbook.

With the exception of membrane roofs water from internal gutters must discharge into a rainwater head or to an internal outlet as shown in e2 as1 figures 63 a and b and figures 64 b or c see figure 3. Working out gutter slope as a general rule gutter slope is set at 1 4 inch per 10 feet of guttering. In general long straight runs should have joints spaced a maximum of 48 feet apart. For example if you have 30 feet of guttering the calculation is 1 4 x 3 0 75 i e.

E2 as1 8 1 6 1 requires all internal gutters to have a minimum 1 100 slope. This means the downspout end of the gutter should be set 3 4 of an inch lower than the other end.