Corrugated profile has 11 ribs and a pitch [distance between ribs] of 76.2mm. Overall Cover Width of 865 mm ± 5 mm, Effective Width Cover: 762 mm ± 5 mm.

During Installation it is recommended that you lay each run of sheets in turn from side to side before moving onto the next run as depicted below. Similar procedure for wall cladding too. Screws must be used in conjunction with appropriate washers. Alternative option is to install using traditional galvanized twisted shank roofing nails hammered into place using appropriate UPVC caps and washers.