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.
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Expansion allowances gutter specific expansion tables based on girth profile metal predicted annual δt expansion of building materials table with various expansion coefficients must be used for fascia and copings with consideration of both metal and substrate flat seam roof expansion guidance over 30 feet use batten seam design to allow for expansion.
Smacna architectural sheet metal manual 7th edition figure 1 6 lap type gutter expansion joint 2012 smacna.
Figure 1 9 built in gutter expansion joint at wall jan 12 2018 15 05 pm figure 1 8 built in 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 2012 smacna.
Smacna architectural sheet metal manual 7th edition figure 1 7 butt type gutter expansion joint.