Re: SB: Polyurathane insulation

[David Neeley <dbneeley@earthlink.net>]

Janice,

Personally, I don't want the stuff near where I must breathe. I won't use 
polyurethane in the house I am designing, even for floor finishes (probably 
the single most popular use).

If you design the attic space for the weight, and if you don't need it for 
storage or living space, why not simply line it with bales? Many others 
have done this with great success, I understand.

Whatever solution you come up with, in my opinion you should also consider 
a foil-based reflective barrier and be sure you have adequate ventilation, 
both for intake and exhaust. Of course, here in Texas the largest problem 
is excess heat rather than winter insulation.

Best wishes,

David


At 01:25 PM 5/30/2001 -0700, you wrote:
>Just wanted some feedback on Polyurathane insulation for attic
>spaces....
>
>I know some of the old comments on embodied energy etc...but it seems to
>me that the most inefficient component of the
>SB spaces we are building is the attic space. ...
>The use of Polyurathane (R-7) per inch...would require only 6" to equal
>out, and would virtually eliminate the settling
>and air movement....
>question:....does anyone have info on  outgassing...is there a health
>hazzard either long term or short term?


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