Fixing Metal Roof Sheets

If you find any remove rust with a wire brush and or steel wool.

Fixing metal roof sheets.

This means that the screw will drill its own hole through the metal roofing panel and into the metal or wood substrate. Then prime the surface with a metal primer and follow up with a top coat to match the color of the roof. If fixing screws are left in the valleys your roof will leak in hundreds of places. If you asked two installers whether they pre drill metal roofing sheets prior to installation you would likely get two completely different answers.

Fixings used to attach roofing sheets to purlins having to be durable and able to withstand considerable wind pressures. You will have to paint the roof but is cheaper than buying new roofing. 2 look for holes rust patches or other signs of deterioration. Metal roofs are made from a wide variety of materials.

1 look for loose nails. The screws that are used to attach the metal roofing are self drilling screws. Remove roofing and turn each sheet over. Most metal roof panels are made from sheet metal that has been coated with a protective surface.

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. These include steel aluminum tin copper and zinc. Over time this coating can wear away leaving the metal panels to oxidize. Pull and re nail them.

Some of these materials are subject to oxidation. 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.