Punch out the circle when done if you are worried about the dust wet it down while drilling.
Caps for holes left by dilling holes in asbestos siding.
If it was convenient i also might keep a running hose on the hole as i m drilling to keep the dust down.
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 adjustable hole cutters from hole pro have tungsten carbide blades and i have cut 7 holes in asbestos and fiber cement board hardie certainteed etc using this hole cutter and a 18 volt cordless.
Eh people get crazy about asbestos and mold.
Does anyone have any tips on how to drill screws into the asbestos sheets safely.
Not all of the siding is asbestos more modern versions are mineral content for an 8 hole use an 8 plumbers bit or scribe your circumference than drill a series of 1 4 pilot bits around the circle spacing them less than 1 4 apart.
Some are missing or broken but it s all good as we bought cement fiberboard replicas and we ll take precautions during the removal of the bad shingles tiles whatever you call them.
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If utilized correctly these work procedures will keep exposure levels below the permissible exposure limit pel and excursion level el of 0 1 f cc and 1 0 f cc respectively.
I would drill a hole at each corner.
The following procedures are for drilling holes through asbestos containing materials acm.
The house is a cape cod built in 1950 and has wonderful asbestos siding on it which i recently had painted.
Best material to patch drill holes in asbestos siding.
I ve searched this diy forum for some tips on drilling asbestos siding but the closest i found was folks discussing cutting holes in asbestos siding.
Hello bought an old home with asbestos siding.
That should create a real weak spot along the.
Removal of or drilling through asbestos containing floor tile and or mastic is a class iii operation under the osha asbestos standard for construction 29 cfr 1926 1101 as long as the amount of asbestos containing debris from the work can be contained in one standard sized waste bag not exceeding 60 inches in length and width.
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Then i would drill a few more holes along the outline of the vent hole you are trying to make.
Then with a utility knife i would trace the outline.
Use a cement bit or youll destroy your drill bit.
If it were me i might throw on an n95 mask if it was handy.