Corrugated Sheet Fixing Detail

For corrugated sheets the fixings required will depend on the material used in the purlins.

Corrugated sheet fixing detail. This forms a broken bond sheet pattern thus avoiding a 4 ply sheet thickness build up at the corners of sheets. Obtain some roofing mesh and cut out 2 identical square patches. Laying the sheets. Start alternate courses of sheets with a half width sheet.

Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms. The sheets should be laid to ridge apex to ensure sufficient weathering cover is provided. A corrugated metal roof is quieter than pvc when it rains.

Cladco offer a range of fixings. To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets.

Apply the cement carefully with a putty knife until you ve sealed the hole completely. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head. Commence fixing sheets at the lower edge of the roof at the opposite end to the prevailing winds. Stagger the sheets using a half sheet to start the second row.

It is important that the maximum support centres given for the type of corrugated sheet being used are not exceeded between purlins.