cutting a hole in my cast concrete wall...REBAR ?

[k13wjd]

hi guys quickie here.

my house is of the cast concrete type. I believe it to be approx 6 inches thick, with 2 layers of re-bar.

I need to cut a 5.5 inch hole in it - for a central heating flue.

I'd like to do the work myself, COULD hire a tool, but am told that i'd need some fairly specalist tools to core cut it....


Is it going to be a hammer and chisel job ?

 

[inspector01]

If the flue is located on the groundfloor, hire a diamond core bit drill the pilot and then run the core bit in from both sides until you just "touch" the re-bar, you can then break the concrete leaving the rebars exposed and cut them off with a hacksaw blade or croppers depending on the thickness. You might get lucky and miss the rebar all together

 

[theoldun]

hi guys.


I HAVE cut the hole - managed to speak to someone who has done it in the same place, and after lots of faffing about with a tape measure, decided i;d found a 117mm circle that should be re-bar free. 10 mins with a dry core, and job done.

Thanks for all the advice guys. Now, on with the plumbi

!

Looks like job done.
oldun