Fixing Metal Roof Sheets

Metal roofs are made from a wide variety of materials.

Fixing metal roof sheets.

The screws that are used to attach the metal roofing are self drilling screws. 1 look for loose nails. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head. If you find any remove rust with a wire brush and or steel wool.

Some of these materials are subject to oxidation. This means that the screw will drill its own hole through the metal roofing panel and into the metal or wood substrate. 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. Fixings used to attach roofing sheets to purlins having to be durable and able to withstand considerable wind pressures.

These include steel aluminum tin copper and zinc. The exact type of fixings required will depend on the roofing sheet and purlin type either timber light steel or heavy steel however we recommend self drilling tek type screws with a 5 16th hex head for optimum performance. Over time this coating can wear away leaving the metal panels to oxidize. Then prime the surface with a metal primer and follow up with a top coat to match the color of the roof.

2 look for holes rust patches or other signs of deterioration. You will have to paint the roof but is cheaper than buying new roofing. If fixing screws are left in the valleys your roof will leak in hundreds of places. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.

Most metal roof panels are made from sheet metal that has been coated with a protective surface. Pull and re nail them.