Description: Standing Seam wall cladding utilizes the same proven joinery as Standing Seam roofing but applied to a vertical wall surface. Seams may be oriented vertically, horizontally, or diagonally. With horizontal or diagonal options, it is important to ensure panel seams are positioned so the seam "opening" is placed on the downward facing side of the seam to insure water sheds over, not into, the seam. Short panel construction (8-10' long pans maximum typical) is more common, due to ease of handling and assembly on a vertical surface. If longer panels are preferred, coordinate with the installer to ensure proper handling under typical construction conditions.
With Standing Seams oriented vertically, transverse seams are per 8.2C Transverse Seam, Detail 1 Steep Pitch. Horizontally oriented Standing Seams on walls require greater transverse seam overlap, similar to 8.2C Transverse Seam, Detail 2 Low Pitch, but with 6" minimum lap. If long panels are preferred, follow attachment and thermal movement guidelines presented in Section 8.8 Long Pan Systems.
There are two variations to Standing Seam Wall Cladding, Double Lock (as with roofing), and Single Lock. Double Lock is preferred.
For more information on Standing Seam Wall Cladding Testing, see Section 15.6 Performance Testing for Copper Wall Cladding.
Window, Door or other Fenestration Penetrations, see Section 12.12.
For transverse seam detail see: 8.2C Transverse Seams, Detail 1 Steep Pitch.
The minimum recommended gauge for Standing Seam Wall Cladding is 16 ounces.
When Standing Seams are oriented horizontally, some prefer to include a copper or stainless-steel stiffening angle within the seam.
Substrate: Continuous nailable substrate
Fastening Method: Cleats screwed or nailed to substrate.
12.11A. Typical Section Double Lock Standing Seam Wall Cladding
This section shows the double lock seam as used for wall cladding, section rotated depending on seam orientation, but, if not vertical, always with seam "opening" to downslope side.
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Cleats spaced a maximum of 12" o/c
12.11B. Typical Section, Single Lock Standing Seam Wall Cladding
This section shows the single lock standing seam as used for wall cladding, section rotated depending on seam orientation, but, if not vertical, always with seam “opening” to downslope side.
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Cleats spaced a maximum of 12” o/c
12.11C. Parapet Detail “Pan End” Style Non-Vented
The non-vented detail is very similar to Detail 4.2.9A "Top of Mansard-Coping Cover".
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12.11D. Parapet Detail “Pan End” Vented
A perforated heavier gauge copper "Z" closure positioned near the top end of each panel provides ventilation. As this "Z" provides positive attachment for the Coping, it should be thicker material. If desired, the design professional can provide an additional lock strip to best support the coping.
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12.11E. Inside Corner Detail
Inside Corner Flashing, showing options for both horizontally or vertically oriented Standing Seam Wall Cladding.
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