Vermiculite...coarse or fine?
I have 3 kinds of vermiculite available:
#1a - Dime sized coarse
#2 - Coarse
#3 - fine
They all cost about the same. Any ideas on which one best suits my needs for the insulating layer?
Thanks in advance.
Coarse, of course!
Although I haven't worked with the other sizes, I think the fine would be too tedious to work with and the Super Coarse would leave many voids--especially when working on the dome insulation.
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