Thermal movement can affect clamp placement. Standing seam metal roofs are designed to respond thermally with dimensional change along the length of the panels. This is accomplished at the panel-to-attachment clip interface.

Most pre-engineered metal buildings utilize dual component clips. The top portion moves thermally with the panel as it is clamped tightly into the seam, while the lower portion (fastened to structure) is stationary; the two pieces are joined with a slip joint.

When attaching to this type of standing seam metal roof, the S-5! clamp can be attached at a clip location or between clips.

Other standing seam metal roofs rely on differential movement between roof clips and roof panels to accommodate thermal cycling. When installing the S-5! clamp on this type of standing seam metal roof, the clamp locations should avoid the panel’s attachment clips.






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