Cutting of Metal Tile roofing sheets

Tin Snips

Cutting the Metal Tile roofing sheet is simple and the process is very similar to cutting of the ordinary corrugated iron.
Safety comes first, so use protective gear such as gloves, glasses and protective clothing. Best of all it to cut the sheets on the ground on a prepared surface instead of cutting the sheets being up on the roof.
To do so, measure the sheets and then put them down to cut on the ground.

The sheets have to be measured accurately and a line has to be drawn. To draw a line use some markers that are easy to remove and do not make any chemical reaction with steel (such as lead based pencils).

Cutting Tools:

Tin Snips Straight Cut

The most simple cutting tool that have been used for centuries are the Tin Snips (or steel cutting scissors). They come in left, right cuts and centre cut.

Electric Metal Cutter

The centre cutting tin snips are great for a straight cuts.

Usually you cut the side that will be covered by a ridge cap or a barge cap, or goes under some flashing like Aron flashing's that joints the roof and wall cladding.

That means that the cuts does not have to be perfect, however a line should be followed.

If you n need to do a lot of cutting some electric cutting shearers can be used. They give a nice and straight line and are easy to use.

To cut the Metal Tiles start from the top of the sheet (from the ridge side) and follow the line to the bottom (the gutter end). This way it is easier to go through the steps.
Try tostay away from the hot cutting tools such as angle grinder, because it burns paints and causes corrosion.

The Metal tile sheets come in a standard sizes, so cutting is very common during the installation.

To cover a large area of the roof you need to use few different size sheets overlapping them.

For example if the roof is 11000 mm long (11 meter long) you will have to use 10 sheet. Each sheet each is 1160 mm wide minus overlap of 60 mm 1160 mm – 60 mm = 1100 mm cover. So 10 x 1100 mm = 11000 mm cover.
You might need to use few sheets to cover the roof from the ridge to the gutter, if this measurement is more then 2220 mm.
For example: The measurement of the roof from the ridge to the gutter is 3270 mm. You need to use one sheet 2220 mm and one sheet of 1170 mm long with overlap of 120 mm. 2220 mm  - 120 mm +1170 mm = 3270 mm.
Always trim the sheets of the top (under the ridge cap) to make it fit right.

For more ideas and installation manual see at www.coroofs.com.au/installation-manual

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