Cut Hole In Asbestos Siding

If you absolutely have to cut it do not use power tools.

Cut hole in asbestos siding.

But here s how you do it. Cut asbestos cement corrugated roofing material with a pair of heavy dolphin nosed tin snips. 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. Asbestos dust which is what would be created by sawing it is the dangerous part.

Smooth off jagged edges with a sharp carpenter s rasp to keep asbestos particle sizes as large as possible. Wet the surface down and use the tin snips to cut and break off small sections at a time. Use a dry masonry blade in your circular saw the abrasive kind used to cut brick block. Mark the cut line with a pencil and straightedge.

Asbestos siding as it is on a house is perfectly safe. 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. The outside is covered with asbestos siding. The house was built in the 1920s but i have no idea how old the siding is.