Riverclack’s unique geometric locking action means that the panels are installed by simple foot pressure onto resin-based material clips that form an efficient thermal and electrical break between the roof and the structure underneath.

Whereas traditional standing-seam roof systems are sealed and locked in place by a machine, the special Riverclack^® snap-fit (“clack”) system means that panels are able to expand and contract according to thermal conditions without sustaining any damage through friction between the panels themselves or against the clips.

The clips are also highly resistant to wear and tear. During thermal-cycle testing, to simulate both temperature variation and panel movement, the clips performed like new after the equivalent of over 200 years.

We subjected Riverclack^® panels to uniformly distributed load tests under laboratory conditions. The panels were installed on a test rig and a purpose-built plastic airbag was then progressively inflated underneath them to simulate the effects of a wind vortex passing over the roof. The 7kN/m2 uplift load resistance achieved is largely due to the unique side lap detail which ensures that, the greater the load applied, the more tightly the panels “claw” into the clips.