Install expansion joints at the ends of every forth 4th gutter section which will divide the gutter system into 40 segments.
Smacna gutter expansion joint.
The expansion joint consists of a self adhesive rubber strip to cover a 1 gap joint between adjoining sections and an exterior cover plate.
Smacna architectural sheet metal manual 7th edition figure 1 7 butt type gutter expansion joint.
Smacna gutter installation instructions step 3.
Figure 1 9 built in gutter expansion joint at wall jan 12 2018 15 05 pm figure 1 8 built in gutter expansion joint.
Smacna architectural sheet metal manual 7th edition figure 1 7 butt type gutter expansion joint 2012 smacna.
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Smacna architectural sheet metal manual 7th edition figure 1 6 lap type gutter expansion joint 2012 smacna.