Usage outside of the ridge area (i.e. the middle of the sheet) entails movements at the ends of the sheet which shall be allowed
For > 30 m long sheets, high snow loads, permanent loads (i.e. machinery) or excessively large structure tolerances, use two or more RA 120. For these applications, please refer to fixed point guidelines or contact the ISCOM technical office
With two or more RA 125 placed on the sheet, installation is recommended on purlins placed in the same fixed point area (max 2 m distance)
It is always advised for the design to be carried out by a competent technician, excercise extra caution lo loads caused by extreme weather conditions