How To Fix Corrugated Roofing Sheets

When joining panels you should use silicone sealant along their vertical length and overlap the sheets by one corrugation.

How to fix corrugated roofing sheets.

You will require either a purlin on rafters or decked roof e g. Roofing grade osb or plywood supported on a trussed roof structure as detailed below. The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. 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.

Take care to fix the bitumen corrugated sheets the correct way up. Modern galvanized steel or aluminum is resistant to rust and can easily last up to 100 years. For corrugated sheets the fixings required will depend on the material used in the purlins. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.

Purlin spacing should suit the end laps required for the size. Corrugations should run in a straight line between the highest and lowest points and at a right angle to the purlins the intermediate supports. To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5. Use a piece of similar style corrugated roofing to patch holes.

Cut the piece large enough to cover the hole and 6 inches of the surrounding roofing each way using sheet metal cutters. Metal panels are much more durable than asphalt shingles so you won t need to repair or replace your roof as frequently. The overlaps ends and sides depends upon the sloop of the roof. A corrugated metal roof is quieter than pvc when it rains.

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.