how much perlite needed to insulate 36' dome

[michelevit]

I've got to run to the store to purchase perlite to insulate
my 36 inch dome oven.

How many bags do you think I will need? I'd like to inuslate
6-8 inches thick.

Thanks in advance.

[Les]

Re: how much perlite needed to insulate 36' dome

I recall using about 3.5 bags of vermiculite for my 42 in. oven.

[richardm]

Re: how much perlite needed to insulate 36' dome

yeah my Dome is just slightly bigger and im wondering how much perlite to get, Im going to mix it with cement to a ratio of 6:1.
Basicaly I can perchase 1oolitre bags of loose fill perlite, and i want to know how much i should get and mix?