Corrugated Sheet Fixing Detail

Step 2 position and fix an additional purlin at the ridge to take ridge fixings.

Corrugated sheet fixing detail. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. For corrugated sheets the fixings required will depend on the material used in the purlins. Apply the cement carefully with a putty knife until you ve sealed the hole completely. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.

Laying the sheets. Commence fixing sheets at the lower edge of the roof at the opposite end to the prevailing winds. Start alternate courses of sheets with a half width sheet. Patching materials for metal corrugated roofing sheets urethane roof cement is an excellent product that can help you patch holes on corrugated metal roofing.

This forms a broken bond sheet pattern thus avoiding a 4 ply sheet thickness build up at the corners of sheets. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5. The sheets should be laid to ridge apex to ensure sufficient weathering cover is provided.

Obtain some roofing mesh and cut out 2 identical square patches. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head. Cladco offer a range of fixings.

The general advice for fixing is 4 5 screws across the sheets purlin we advise using 1 screw on the overlap of the next sheet.