Use a dry masonry blade in your circular saw the abrasive kind used to cut brick block.
Best way to cut asbestos siding.
However if you want to remove you have two options.
Use slow deliberate strokes with the saw under water trickling from a hose pipe or a water bottle with a small hole.
The newer siding will not cut this way with out breaking.
Cutting asbestos shingles is a no no because it s so hazardous.
How to cut asbestos cement.
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.
The best way is the way that creates the last dust.
There s really not much to fuss over.
Wet the siding and start your cutting.
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.
Wet the line down and score a deep groove into the surface with a sharp utility knife and straightedge.
Don t let the word asbestos turn your spine to jelly.
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.
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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.
Asbestos siding never needs to be removed simply because it is asbestos.
In fact you may be able to install new siding on top of the asbestos siding no removal necessary.
Line up the nail holes between the old upper layer cement asbestos shingles and the new fiber cement shingles to be secured underneath.
For vent or other holes in asbestos siding or where lead paint is likely to be can be drilled using a shielded hole cutter.
You can cut them in place with a multi master.
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.
But here s how you do it.
Cut a 45 degree bevel onto the edge joint of asbestos cement siding with a large carpenter s rasp.