Wet the surface down and use the tin snips to cut and break off small sections at a time.
Cutting a vent hole in asbestos siding.
Then with a utility knife i would trace the outline.
I would drill a hole at each corner.
Does that sound about right.
I m thinking of shooting out with like a regular 1 8 drill bit and then going from the outside in with like a 1 1 4 hole saw.
Cutting asbestos shingles hi mike i recently had to replace some of this stuff when i rebuilt the cripple wall on one side of a basement.
The outside is covered with asbestos siding.
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.
I used a metal cutting blade in a jigsaw drilled a hole at the edge of my circle and then walked the saw around the mark while dribbling a little water from a hose on the cut and placing the nozzle of my shop vac next to the saw as i cut.
Then i would drill a few more holes along the outline of the vent hole you are trying to make.
Use a cement bit or youll destroy your drill bit.
For vent or other holes in asbestos siding or where lead paint is likely to be can be drilled using a shielded hole cutter.
I have to drill a few holes this week through some of that old asbestos shingle siding.
I know thse shingles break easily but i see there are other holes drill through.
Cut asbestos cement corrugated roofing material with a pair of heavy dolphin nosed tin snips.
The house was built in the 1920s but i have no idea how old the siding is.