Use special roofing fasteners rather than standard screws to secure the corrugated sheets as they have a waterproof seal underneath the head that prevents leaks.
How to fix roofing sheets.
Remove roofing and turn each sheet over.
Press one patch over the roofing cement.
For corrugated sheets the fixings required will depend on the material used in the purlins.
You will have to paint the roof but is cheaper than buying new roofing.
You will need a number of corrugated sheets to complete your roof the number depending on how big your hut is.
To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5.
Stitch screws are smaller secondary fasteners and should be used for sheet side laps and the securing of flashings and ancillary components to the sheeting.
At the eaves purlin additional fixing is necessary to prevent wind uplift and downslope slippage due to repeated thermal movement.
When joining panels you should use silicone sealant along their vertical length and overlap the sheets by one corrugation.
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.
Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.
Apply the cement carefully with a putty knife until you ve sealed the hole completely.
What was previously a valley in the corrugations will now be a ridge and the nail hole will be in the correct place.
Patching materials for metal corrugated roofing sheets.
Fixing the corrugated roof sheets.
As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head.
The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets.
Stitch screws are used for metal on metal fastening and do not require anchoring to a purlin.
Urethane roof cement is an excellent product that can help you patch holes on corrugated metal roofing.
Obtain some roofing mesh and cut out 2 identical square patches.
If fixing screws are left in the valleys your roof will leak in hundreds of places.
Most roofing sheets cover a width anywhere from 2ft to 3 5ft and.
Once you have your timber roof structure in place complete with waterproof membrane it s time to fix your corrugated roof sheets.
We recommend that stitch screws should be run every 300mm to 600mm along any metal joins.
Cladco offer a range of fixings available to fix into most purlin materials.