Corrugated Sheet Fixing Detail

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

Corrugated sheet fixing detail.

Step 2 position and fix an additional purlin at the ridge to take ridge fixings. A corrugated metal roof is quieter than pvc when it rains. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. 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. This forms a broken bond sheet pattern thus avoiding a 4 ply sheet thickness build up at the corners of sheets. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. 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.

To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5. Stagger the sheets using a half sheet to start the second row. Laying the sheets. 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 bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. 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.

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