Fixing Corrugated Steel Sheets

Corrugated roofing sheets should be installed into the corrugated sheets crown using a 65mm tek screw with baz washer.

Fixing corrugated steel sheets.

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. 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. A range designed and manufactured to meet all recognised industry standards and a selection of washered and unwashered roofing screws. 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.

The fabrication of metal cladding and roof sheet is a two step process. 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. 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. Corrugated sheet roofing.

The bottom end of the sheets you can fix in each trough to help prevent wind uplift of the sheets. Suitable for attaching sheet metal to steel or wood and recommended for outdoor use but can also be used on internal jobs. 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. As with all of the fixing screws provided you can use a colour cap to hide the stainless steel head.

A corrugated metal roof is quieter than pvc when it rains. Metal roofing resists rot is not susceptible to insect damage and is non combustible a boon in fire prone areas. To fix the sheets each tileform sheet has 5 troughs for securing we recommend you fix the sheet into trough 1 3 and 5. One downside is that the metal sheets have a susceptibility to denting both in installation and during hailstorms.

We stock corrapol stormproof bitumen more. 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. Corrugations should run in a straight line between the highest and lowest points and at a right angle to the purlins the intermediate supports. For corrugated sheets the fixings required will depend on the material used in the purlins.

The overlaps ends and sides depends upon the sloop of the roof. Bzp carbon steel finishes and excellent quality for general exterior construction. Spend over 25 for free delivery or click and collect. The first step is the manufacture of thin steel sheets that are rolled up into coils.