Overlapping sheets
Side laps
Side laps are created when you lay the sheet side to side. You must always remember to lay the overlap detail over the previous sheet. Overlap details are the shorter unfinished sides of the sheets which help prevent capillary action drawing water in through the overlaps.
Please be aware that you can overlap sheets by additional corrugations if you need to reduce cover width rather than cut sheets down the full length.
Below you will find examples of side lap details for our most popular profile types:
Tile effect sheet side laps
Tile effect sheets can only be laid in one direction, this is due to the gutter detail at the bottom of the sheet.
Wave-Tile can only be laid right to left:
End laps
If end laps are required you should allow 300mm minimum overlap, sealed with butyl sealant tape 10mm from the edge of each overlapping sheet as well as in the middle of the overlap. Any end laps must be supported by a suitable purlin.
