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Date: | Sat, 8 Aug 2009 20:20:06 -0700 |
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Folks,
As you all ponder rock wool ( and I do wonder what mineral it is...
And it beats horse hair which I've found out here in the west), what
about "calcimite?". Maybe it goes by another vernacular name
elsewhere. I have found it on interior walls. It's often a nasty
yellowed calmine lotion color or dirty turquoise. It won't take paint
so I suspect it's plaster. ???
Mary
hands-on impresario
Tegel Design + Planning
On Aug 8, 2009, at 8:10 PM, "Becker, Dan"
<[log in to unmask]> wrote:
> The rock wool that was in the ceiling of my house additions dating
> between 1932 and 1941 was paper-backed batts on which the words
> "Rock Wool" were preceded by the word "Manville." So I've always
> been wondering what other minerals might have been contained in the
> batts in my belfrey....
>
> Dan
> _____________________________________
> ______________________________________
> From: Cuyler Page [[log in to unmask]]
> Sent: Saturday, August 08, 2009 12:37 AM
>
> In my house it is a natural mixture of fluffy grey stuff, mouse
> turds and
> sawdust chips.
>
> Mr. Google says:
> "Rock wool is a naturally-occurring mineral fibre that looks like
> chopped
> white cottony material. (It may have originally been formed by wind
> blowing
> across streams of lava from erupting volcanoes.)"
>
> cp in bc
>
> ----- Original Message -----
> From: "Ruth Barton" <[log in to unmask]>
> Sent: Friday, August 07, 2009 6:23 PM
> -
>> Can anyone tell me what "rock wool" insulation is composed of?
>> Thanks,
>> Ruth
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