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Re: GBlist: How much insulation to put in roof & in floor? -Reply

Hi, Lawrence--

There is a thorough environmental comparison of insulation materials in
Environmental Building News, Vol. 4 No. 1 January/February 1995. Contact
EBN at(802)257-7300.


PS Does cotton have a product approval from one of the national code
organizations, like ICBO?

O'Brien & Associates
Environmental Building Consultants
Portland General Electric Earth Smart program