Fixing Corrugated Steel Sheets

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 corrugated steel sheets.

Corrugations should run in a straight line between the highest and lowest points and at a right angle to the purlins the intermediate supports. Although there are a few manufacturers who supply to australia including colorcote from new zealand this part of the process is dominated in australia by bluescope which manufactures a. Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer. Buy plastic metal corrugated sheets at toolstation.

Corrugated sheet roofing. We stock corrapol stormproof bitumen more. The roofing walling shall be 0 42 or 0 48 mm bmt stramit corrugated roof and wall cladding in continuous lengths with sinusoidal ribs 16mm high spaced at 76 2mm centres in accordance with as1445. 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.

When fixing through the sheet directly into a steel purlin a 25mm light section tek screw or 35mm heavy section is recommended 3 traditional corrugated sheet fixings sinusoidal profiled sheets otherwise known as wriggly tin are normally fastened using longer screws through every second or third crown highest point of the profile to. For corrugated sheets the fixings required will depend on the material used in the purlins. Suitable for attaching sheet metal to steel or wood and recommended for outdoor use but can also be used on internal jobs. A range designed and manufactured to meet all recognised industry standards and a selection of washered and unwashered roofing screws.

Bzp carbon steel finishes and excellent quality for general exterior construction. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. Corrugated sheet roofing material is widely available and easy to use. Cladco offer a range of fixings.

The first step is the manufacture of thin steel sheets that are rolled up into coils. 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. Sheeting material shall be protected steel sheet to australian standard as1397 with a minimum yield stress of 550mpa grade g550 and an am100 az150 coating with or without an oven baked paint.

One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms. To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5. The fabrication of metal cladding and roof sheet is a two step process. The overlaps ends and sides depends upon the sloop of the roof.