Smacna Gutter Expansion Joint Detail

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 gutter expansion joint detail.

The capacity of a sloped rectangular gutter may be approximated by using a gutter cross section area not less than that of a semicircular gutter and a depth to width ratio of at least 0 75. Sheet metal and air conditioning contractors national association 4201 lafayette center drive chantilly virginia 20151 1219 tel 703 803 2980 fax 703 803 3732. Presents practical troubleshooting and corrective tips for typical problems of roof panels gutters downspouts fascia copings flashing ridges and hips valleys expansion joints penetrations fasteners and soldering. Smacna gutter installation instructions step 3.

An invaluable inspection resource for owners of standing seam batten seam or bermuda type roofs. 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. Install expansion joints at the ends of every forth 4th gutter section which will divide the gutter system into 40 segments. An expansion joint cap is placed on top over the gutter end flanges and the cover plate.

15 m is a practical maximum gutter length to be served by a downspout. Gutter ends are flanged then riveted and soldered into the gutter sections. Presents practical troubleshooting and corrective tips for typical problems of roof panels gutters downspouts fascia copings flashing ridges and hips valleys expansion joints penetrations fasteners and soldering. According to smacna the best way to protect your gutter system from thermal expansion is to split any run of 50 ft or more into two separate runs capping both ends and leaving gap between the top edges of the end caps fig 1.

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 bubble dvd destroys design myths jan 2 2018 11 37 am duct system calculator metric jan 2 2018 11 35 am. To limit the effects of thermal expansion in gutters 50 ft.