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