It is important that the maximum support centres given for the type of corrugated sheet being used are not exceeded between purlins.
Fixing corrugated metal sheets.
For securing corrugated sheeting longer screws are required as you are fixing into the crown of the sheet.
Use a piece of similar style corrugated roofing to patch holes.
Wear hearing and eye protection.
Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.
Buy plastic metal corrugated sheets at toolstation.
Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run.
Paint or prime cut edges to prevent rust.
Commence fixing sheets at the lower edge of the roof at the opposite end to the prevailing winds.
Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges.
We stock corrapol stormproof bitumen more.
Angle grinder 1 x research source the fastest option.
Stagger the sheets using a half sheet to start the second row.
For example fixing into wood a 65mm tek screw with a baz washer is suggested.
Some panels have pre drilled holes.
Corrugated metal roofing sheets should always be fitted by over lapping by one corrugation and we always advise to start from left to right of a building.
Step 1 cut the panels to the desired length.
If yours do not.
When fixing through the sheet directly into a timber purlin a 65mm timber tek screw is recommended.
Corrugated metal profiles for walling applications may be valley fixed providing the sealing element is designed and shaped to ensure a seal against the curved valley profile.
Laying the sheets.
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.
Spend over 25 for free delivery or click and collect.
Cut the piece large enough to cover the hole and 6 inches of the surrounding roofing each way using sheet metal cutters.
As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head.
For corrugated sheets the fixings required will depend on the material used in the purlins.