Crafty Bugger wrote:
I think it's called Ellis board. It's a heat resistant board used to
line flues.

I need to saw up quite a bit of it and it seems quite dusty. It looks
like asbestos!

Ta.

Never heard of this board.

But if you suspect its asbestos then sawing or taking power tools to it
is a really bad idea.

Unless you know exactly what type of asbestos it is and precisely how to
handle it safely then you could be taking a risk with your (and other
peoples) health.

As an aside ... have you thought of how you will dispose of the waste?
Not all local tips will take it and you may need to double bag it etc
before they will accept it even if they do (your local authority may be
able to provide advice here). If its commercial waste you will have to
pay for disposal I suspect.

Have you considered professional removal?

Alex