• Re: Mineral Wool vs Fiber Glass - mspanel@gmail.com 05:30:29 03/07/06 (0)
  In Reply to: Mineral Wool vs Fiber Glass posted by P. Hanley on February 26, 2006 at 13:12:02:

  Here's a great source for both:

  www.insulationworld.com
  

  • http://www.insulationworld.com   (Open in New Window)

  
  

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• Re: Mineral Wool vs Fiber Glass - Ethan Winer 14:21:08 02/26/06 (1)
  In Reply to: Mineral Wool vs Fiber Glass posted by P. Hanley on February 26, 2006 at 13:12:02:

  Paul,

  > At what frequencies are these really the same? <

  They're probably close enough not to matter. You could track down absorption data for every material you're considering, but even that won't tell you much. Most data doesn't go below 125 Hz, and testing labs can vary by 50 percent or more at that frequency and below anyway. One big difference between mineral wool and rigid fiberglass is that mineral wool is "floppy" and doesn't hold its shape well. So that might be a factor depending on how you plan to install it.

  --Ethan
  
  

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  • Re: Mineral Wool vs Fiber Glass - P. Hanley 06:32:40 02/27/06 (0)
    In Reply to: Re: Mineral Wool vs Fiber Glass posted by Ethan Winer on February 26, 2006 at 14:21:08:

    Hi Ethan,

    Thanks for your insight. I figure that if it's easier to handle from a stray fiber perspective (no itch!) I could easily place a center brace in the frame that I'd build to maintain some of it's shape. One can get 48 sq ft of 4" MW for about $80.00. Not bad at all.

    Thanks again!
    Paul
    
    

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