Fitting Corrugated Metal Roofing Sheets

A corrugated metal roof is quieter than pvc when it rains.

Fitting corrugated metal roofing sheets.

By combining high quality steel and a corrugated form factor our range of metal roofing sheets are a superb solution for virtually any roofing project. The overlaps ends and sides depends upon the sloop of the roof. Corrugated metal roofing sheets should always be fitted by over lapping by one corrugation and we always advise to start from left to right of a building. 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.

When purchasing the pvc corrugated sheets remember that the sheets need to overhang the verge of the roof by 2 inches. Fixing screws should always be screwed into the higher part of the profile when installing corrugated steel roof sheets to purlins and stitch screws are used to stitch the steel sheet to. Fixings used to attach roofing sheets to purlins having to be durable and able to withstand considerable wind pressures. Take care to fix the bitumen corrugated sheets the correct way up.

Measure the length and width of the roof by using a tape measure. Corrugated sheets can be fixed with hex head screws ensuring fast and simple installation with the recommended side lap one and a half corrugations. Also each sheet overlaps the next as it is laid horizontally and by 2 inches vertically. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas.

You will require either a purlin on rafters or decked roof e g. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head. 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. Make a note of the roof construction.

All the while these roofing sheets are easy to fit and lightweight especially when compared to traditional roof tiles. Corrugations should run in a straight line between the highest and lowest points and at a right angle to the purlins the intermediate supports. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms. Colours our products are available in an attractive range of colours in colorbond factory prepainted steel and in unpainted zincalume aluminium zinc magnesium alloy coated steel.

Multiply the two measurements together to get the total area of the roof. Roofing grade osb or plywood supported on a trussed roof structure as detailed below.