How To Fix Roofing Sheets

Cladco offer a range of fixings available to fix into most purlin materials.

How to fix roofing sheets.

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. We recommend that stitch screws should be run every 300mm to 600mm along any metal joins. Obtain some roofing mesh and cut out 2 identical square patches. When joining panels you should use silicone sealant along their vertical length and overlap the sheets by one corrugation.

The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. Fixing the corrugated roof sheets. Use a piece of similar style corrugated roofing to patch holes. 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.

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. Cut the piece large enough to cover the hole and 6 inches of the surrounding roofing each way using sheet metal cutters. Press one patch over the roofing cement. Remove roofing and turn each sheet over.

Stitch screws are used for metal on metal fastening and do not require anchoring to a purlin. Patching materials for metal corrugated roofing sheets. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. At the eaves purlin additional fixing is necessary to prevent wind uplift and downslope slippage due to repeated thermal movement.

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. You will need a number of corrugated sheets to complete your roof the number depending on how big your hut is. Apply the cement carefully with a putty knife until you ve sealed the hole completely.

Most roofing sheets cover a width anywhere from 2ft to 3 5ft and. What was previously a valley in the corrugations will now be a ridge and the nail hole will be in the correct place. 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. You will have to paint the roof but is cheaper than buying new roofing.

As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head.