Fitting Corrugated Metal Roofing Sheets

Make a note of the roof construction.

Fitting corrugated metal roofing sheets. Measure the length and width of the roof by using a tape measure. 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. 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. All the while these roofing sheets are easy to fit and lightweight especially when compared to traditional roof tiles.

Corrugated sheet roofing. Also each sheet overlaps the next as it is laid horizontally and by 2 inches vertically. You will require either a purlin on rafters or decked roof e g. Multiply the two measurements together to get the total area of the roof.

Corrugated sheet roofing material is widely available and easy to use. 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. Take care to fix the bitumen corrugated sheets the correct way up. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.

One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms. When purchasing the pvc corrugated sheets remember that the sheets need to overhang the verge of the roof by 2 inches. Corrugations should run in a straight line between the highest and lowest points and at a right angle to the purlins the intermediate supports. The overlaps ends and sides depends upon the sloop of the roof.

A corrugated metal roof is quieter than pvc when it rains. 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. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. Fixings used to attach roofing sheets to purlins having to be durable and able to withstand considerable wind pressures.

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.