In fact you could use a utility knife or a carbide tipped scoring equipment in order to spot the line.
How to cut cement board siding.
Unlike score and snap you ll need to use a surface.
Mark where you d like to cut the board.
Lay your cement board out on a work table or between two saw horses.
For a slow but virtually dustless way to cut siding use power.
When cutting fiber cement siding with circular saw use a blade that has only four or six teeth.
With the cement board flat use a ruler to guide your pencil as you mark a line where you want to cut the board.
Wait for the saw blade to warm up and come to full rpm before.
You may need to trace over the line a few times to leave a mark that you can see well.
The cleanest way to cut fiber cement siding is by using siding shears.
To keep dust to a minimum use a circular saw that s equipped with either a dust collection bag or electric fan that.
Make sure the line is straight and visible.
Use the score and the snap tools.
Typically siding shears use air.
The easiest method to cut the hardie board is that you spot the surface and break the sheet along the marked line.
Like the score and snap method set a straightedge across your sheet.
Draw a line with a carpenter s pencil where you want to cut the board.