1930 insulation?

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  #1  
Old 12-12-05, 05:17 PM
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1930 insulation?

I am renovating a 1930 Seattle Bungalow, the attic was converted to a finish loft and I'm currently gutting the main floor bath. In the ceiling of the bath (the floor of the loft), I found what looks like mineral fiber insulation (dark red). Is this something I should keep? It might be a good noise barrier, but is no longer needed for insulation purposes.
Thanks for any info what this might be.
 
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  #2  
Old 12-15-05, 11:33 AM
way2goohio
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Hard to say. Could be rockwool of some sort.
 
  #3  
Old 12-15-05, 11:42 AM
Join Date: Mar 2005
Location: USA
Posts: 6,125
1930 insulation?

Apparently it caused no problems in the last 70 years or so, so I would leave it in place. You may get a benefit from a sound transmission standpoint, bu I don't know who would benefit the most- bathroom or the loft.

The only possible problem could come if you did not have a vapor barrier (paint, poly, etc) between a high humidity room and any cooler areas. Usually the older paints and the number of coats did this adequately.

Dick
 
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