Kalzip profiled sheets are secured to the substructure of a roof construction by the use of extruded Kalzip aluminium (L) clips (with associated polyamide thermal barrier pads) or Kalzip E clips. The clip heads are designed to freely accommodate movement of the external sheet during thermal cycling, enabling the use of long sheet lengths.
Kalzip E clips are steel reinforced polyamide clips designed to further enhance the overall Kalzip system by improving its thermal, acoustic and movement performance. They offer a fixing mechanism with no significant thermal bridging whilst still retaining structural capability similar to the extruded aluminium (L) clip. The E clips also reduce the frictional forces generated during thermal cycling of the external sheet and are recommended for use on roof areas with sheet lengths exceeding 40 metres.