Cutting Through Asbestos Siding

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Cutting through asbestos siding.

How do i cut a hole through asbestos siding without it shattering. I need to install an exhaust vent and a window in my detached garage and the garage has asbestos siding on it. My exterior wall has asbestos siding. Another was to try cutting it with a skill saw with a tile blade on it.

You can t drive screws and nails through them without pre drilling. It s generally in some type of cement board so best to wet it score it and then snap it. The portland cement binds asbestos fibers into a hard mass. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.

The reported costs for such projects range from 500 to 4 500 while the typical cost for asbestos siding removal is generally between 1 000 and 2 500. Has anyone ever cut this type of siding before. I have talked to several other contractors and they suggested several options. Use slow deliberate strokes with the saw under water trickling from a hose pipe.

This will require cutting back the asbestos siding. Step 6 cut a 45 degree bevel onto the edge joint of asbestos cement siding with a large carpenter s rasp. 1 not all fiber cement siding has asbestos in it yes most do but not all 2 i have never successfully been able to drill through this stuff beyond 1 2 hole without it cracking no matter how careful i was 3 thank you knob scratcher for pointing out that asbestos isn t the hazmat material the hype would have most believe. I tried this and it didn t break on the scoring.

One was scoring the siding and breaking it. Use a cement bit or youll destroy your drill bit. Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. Saw through a cut line in asbestos cement pipe with a hacksaw fitted with a coarse blade.

I am well aware of the dangers of disturbing asbestos but the bottom line is it has to be done and removing the siding is not an option at this time. Same with lead paint. My skill with asbestos siding is not very good at all. Do not do this without an n100 respirator gloves and goggles and a piece of plastic down below to catch all remnants.

A brief history of asbestos cement siding. Asbestos siding removal isn t free but if you re having it replaced with something else you just might be able to get a good deal with the company you end up choosing. I ve drilled holes in it and it s pretty tough getting through and when i ve tried to. Have a helper move a running hose to follow the rasp while cutting.

Asbestos shingles are relatively strong but brittle. This would trigger dust and asbestos dust is a problem as i ve mentioned.