Commence Laying Tray Cladding

1. Install the eaves grab flashing to which the sheets will be crimped and any other flashings that may be behind the cladding, for example, window jamb flashings.
2. Fit the netting and/or underlay. On flat roofs requiring underlay support, using twine is preferable to netting as the joins in the latter may imprint through the medium strength iron through foot traffic.
3. Form stop-ends in the sheets.
4. Then the sheets can be laid, starting from a distance from the barge to give equal cover distance to the opposing barge and other architectural features and penetrations. Fasteners should be annular grooved nails or screws, with clips at centres specified by the manufacturer to suit the product and wind zone.

Pre-painted tray roofing will usually be supplied with strippable film to give temporary protection from scratching. The film should be removed from underlaps while laying, and removed entirely before UV sets the adhesive making it difficult to remove without leaving glue residue on the sheet. Traffic across sheets should be kept to a minimum, particularly with self-supporting products.