How To Fix Roofing Sheets

Stitch screws are used for metal on metal fastening and do not require anchoring to a purlin.

How to fix roofing sheets. At the eaves purlin additional fixing is necessary to prevent wind uplift and downslope slippage due to repeated thermal movement. Once you have your timber roof structure in place complete with waterproof membrane it s time to fix your corrugated roof sheets. Apply the cement carefully with a putty knife until you ve sealed the hole completely. Polycarbonate sheets should be installed with the ribs running in the direction of the slope and it is recommended that at least one of the ribs is securely clamped in the glazing system.

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. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. Use a piece of similar style corrugated roofing to patch holes. For corrugated sheets the fixings required will depend on the material used in the purlins.

If fixing screws are left in the valleys your roof will leak in hundreds of places. When joining panels you should use silicone sealant along their vertical length and overlap the sheets by one corrugation. 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. Press one patch over the roofing cement.

Cladco offer a range of fixings available to fix into most purlin materials. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. Urethane roof cement is an excellent product that can help you patch holes on corrugated metal roofing. You will need a number of corrugated sheets to complete your roof the number depending on how big your hut is.

Fixing the corrugated roof sheets. Patching materials for metal corrugated roofing sheets. We recommend that stitch screws should be run every 300mm to 600mm along any metal joins. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head.

Most roofing sheets cover a width anywhere from 2ft to 3 5ft and. You will have to paint the roof but is cheaper than buying new roofing. Cut the piece large enough to cover the hole and 6 inches of the surrounding roofing each way using sheet metal cutters. 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.

What was previously a valley in the corrugations will now be a ridge and the nail hole will be in the correct place.