Cutting asbestos shingles is a no no because it s so hazardous.
Best way to cut asbestos siding.
But here s how you do it.
Saw through a cut line in asbestos cement pipe with a hacksaw fitted with a coarse blade.
In fact you may be able to install new siding on top of the asbestos siding no removal necessary.
The best way is the way that creates the last dust.
For vent or other holes in asbestos siding or where lead paint is likely to be can be drilled using a shielded hole cutter.
Asbestos siding never needs to be removed simply because it is asbestos.
How to cut asbestos cement.
4 1 2 diamond blade in a grinder.
Mark the line to be cut on asbestos cement sheeting using a pencil and straightedge.
Use a dry masonry blade in your circular saw the abrasive kind used to cut brick block.
Place the sheet on a solid surface such as a work bench.
However if you want to remove you have two options.
The newer siding will not cut this way with out breaking.
Use slow deliberate strokes with the saw under water trickling from a hose pipe or a water bottle with a small hole.
The old style siding could be cut with a knife as the above poster stated make your score and lay on bench with the score on the edge of the bench and pop the shingle to snap it.
Wet the line down and score a deep groove into the surface with a sharp utility knife and straightedge.
A nice clean cut with no dust.
Wet the siding and start your cutting.
As long as the siding remains intact it can stay.
Line up the nail holes between the old upper layer cement asbestos shingles and the new fiber cement shingles to be secured underneath.
You can cut them in place with a multi master.
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First on the list if the tiles are free is a kett power shear with blades angled for cutting cement products.
Cut a 45 degree bevel onto the edge joint of asbestos cement siding with a large carpenter s rasp.
There s really not much to fuss over.