Smacna Gutter Expansion Joint Detail

An invaluable inspection resource for owners of standing seam batten seam or bermuda type roofs.

Smacna gutter expansion joint detail.

An expansion joint cap is placed on top over the gutter end flanges and the cover plate. An invaluable inspection resource for owners of standing seam batten seam or bermuda type roofs. Smacna gutter installation instructions step 3. 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.

Install expansion joints at the ends of every forth 4th gutter section which will divide the gutter system into 40 segments. 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. 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. Smacna bubble dvd destroys design myths jan 2 2018 11 37 am duct system calculator metric jan 2 2018 11 35 am.

Figure 1 9 built in gutter expansion joint at wall jan 12 2018 15 05 pm figure 1 8 built in gutter expansion joint. 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. For the lap type gutter expansion joint a gutter end is recessed 2 1 2 minimum into the gutter on one gutter section and fitted flush on the other.

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. Gutters downspouts the greatest value in gutters and roof drainage with a unique design that improves performance while complementing your roof s aesthetic qualities metal era s line of water drainage products is the only system that s factory mutual approved. 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.