About to start and confused already!

[cobblerdave]

Re: About to start and confused already!

Gudday
An angle grinder and diamond grit blade will go through block like butter.
Dusty but quick
Regards dave

[david s]

Re: About to start and confused already!

If you cut a groove into the block work with the diamond blade then you can just drop the angle iron into it. Allow a slight gap each end of the angle iron to allow for its expansion.

[Les]

Re: About to start and confused already!

so I got my angle irons - i know i'm supposed to take a piece off each side to make them sit flat on the blocks

If you are talking about cutting the iron, they make a blade for your grinder. It throws off a ton of sparks but it cuts pretty easily.

[david s]

Re: About to start and confused already!

If you are talking about cutting the iron, they make a blade for your grinder. It throws off a ton of sparks but it cuts pretty easily.

You'll lose all the strength of the angle iron if you remove bits off the sides. Better to recess it into the block work IMO.

[hlcr]

Re: About to start and confused already!

thanks, so you're all recommending I cut into the block rather than the angle iron - that's probably easier to do too...i''ll give it a go!

[hlcr]

Re: About to start and confused already!

will any $89 from the big green warehse do the job? or does it have to be more robust?

[brickie in oz]

Re: About to start and confused already!

will any $89 from the big green warehse do the job? or does it have to be more robust?

You could just hack away at the top of the blockwork with a chisel, just aim the blows down the block not sideways.

[hlcr]

Re: About to start and confused already!

Thanks for all the tips! I went the angle irons in the end and had them adjusted at a steel fabricator - best $60 i spent )

Is there an optimum length for the chimney - does it depend on the size of the dome?
Also, is it recommended to use a fire-rated render over the insulated dome or can i use a normal render?

[brickie in oz]

Re: About to start and confused already!

Also, is it recommended to use a fire-rated render over the insulated dome or can i use a normal render?

If you need fire rated render over the insulation you have built it wrong.....