• Re: Knauf fiberglass vs Owens Corning 705 - Ethan Winer 13:14:34 01/18/06 (1)
  In Reply to: Knauf fiberglass vs Owens Corning 705 posted by Aristée on January 17, 2006 at 20:16:52:

  Hugo,

  > Does anybody knows if it is as good as OC 705 ? <

  You can see the absorption coefficients for a few types of rigid fiberglass in my Acoustics FAQ:

  www.ethanwiner.com/acoustics.html

  > What is the density of the OC 703 ? <

  3 pounds per cubic foot.

  Also follow the link from my FAQ to my Density report.

  I'll mention that when comparing different materials from different vendors you should ignore small changes - maybe less than 20 percent. Even though acoustic labs are certified and calibrated, they still can vary quite a lot.

  --Ethan
  
  

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  • Re: Knauf fiberglass vs Owens Corning 705 - Aristée 17:59:53 01/27/06 (0)
    In Reply to: Re: Knauf fiberglass vs Owens Corning 705 posted by Ethan Winer on January 18, 2006 at 13:14:34:

    Thanks M Winer for your answers. I will buy the Knauf product, since it is much cheaper for about the same properties than the OC.

    Hugo
    
    

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