-september.org> e5242eee   
   From: zekor@comcast.net   
      
   Dick Pierce  wrote:   
   > thekmanrocks@gmail.com wrote:   
   >> no mess:  "Probably only an issue if he attacks it with a blow > torch,   
   >> after installing on the outside of his house."   
   >>> My priorities regarding soundproofing foam:   
   >>> #1.  Flame retardent/resistant.   
   >>> #2.  Sound absorbtion.   
   >>> Remember the Station!   
   >>> 'nuff said.   
   >   
   > What do you mean by "soundproofing? Do you mean preventing sound   
   > from getting in or out of an enclosed space (or, as it sometimes   
   > referred to, reducing sound transmission)? If so, foam is pretty   
   > terrible at that, especially at low frequencies.   
      
      
   This old thread somehow got restarted. I recently saw some kind of demo   
   showing how blow in cellulose is much better absorber of mid to high   
   frequencies compared to fiberglass. I'm installing doors downstairs, and   
   solid core is obviously best. I bought one plastic sided door. At a doctors   
   office using the same door, I heard everything going through. I'm thinking   
   of doing an experiment if I can determine how the spacers are laid out.   
   That's a workroom. I think I'll use heavier doors on bath, entertainment,   
   bedroom.   
      
      
   Greg   
      
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