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Author Topic: mineral wool board?  (Read 329 times)

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Offline peteH

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mineral wool board?
« on: July 22, 2018, 07:04:57 PM »
I was getting ready to buy some ceramic fiber board and saw this company also sold mineral wool board.  What is the difference and is mineral wool board any good? pro and cons.  Thanks

Offline stonecutter

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Re: mineral wool board?
« Reply #1 on: July 23, 2018, 01:17:03 PM »
The difference between mineral wool board and what, Pete? Ceramic fiber? Perlcrete? Foamglas?

   I suggest starting with TDS sheets for melting point, rvalue etc, etc.

 As for the general diffence with any of the ‘cretes’, I think it’s accepted that they are around half the insulative value of ceramic board...lots of variables there though. Not enough to worry about unless you want thinner overall thickness of the structure for whatever reason.
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Offline vtsteve

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Re: mineral wool board?
« Reply #2 on: July 23, 2018, 02:33:53 PM »
I was getting ready to buy some ceramic fiber board

I like cal-sil and foamglas under, and ceramic blanket (or mineral wool) over the dome. The mineral wool boards have a lower compressive strength to start, and will compress even more if they get wet (which they shouldn't, but...).
In grams we trust.
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