Mark the cut line with a pencil and straightedge.
Cut hole in asbestos siding.
For a hole cutter the minimum to get is a carbide tipped hole saw and best for lots of holes are the hole cutters with tungsten carbide teeth.
I know that this stuff is supposed to be safe as long as it s not crumbling but at some point i might want to make holes in it to add a kitchen or bathroom vent or maybe even add a window.
The house was built in the 1920s but i have no idea how old the siding is.
Smooth off jagged edges with a sharp carpenter s rasp to keep asbestos particle sizes as large as possible.
Asbestos siding as it is on a house is perfectly safe.
Cutting asbestos shingles is a no no because it s so hazardous.
Cut asbestos cement corrugated roofing material with a pair of heavy dolphin nosed tin snips.
If you absolutely have to cut it do not use power tools.
Use a dry masonry blade in your circular saw the abrasive kind used to cut brick block.
But here s how you do it.
Wet the surface down and use the tin snips to cut and break off small sections at a time.
The outside is covered with asbestos siding.