Airkrete—Palmer Industries 301-898-3312. Quote of $7060. Airkrete has been around for over 20 years and is the product recommended for people with chemical sensitivities because it is cement based and does not off gas at all, ever. Because it is cement based, it does not burn or melt and in tests has acted as a firewall. Mold won’t grow around it, and mice and rats don’t like it and stay away. Airkrete and Bio Based were the two insulations recommended by our energy consultant. R value of 4 per inch. It’s down side is the possibility of slight shrinkage and that if compressed it turns to sand (it’s friable). The contractor, Douglas Palmer, is listed on the Airkrete webpage and has worked all over the country training and licensing contractors for Airkrete. We were impressed by his expertise, by Airkrete’s firewall capability and the R value, and chose to go with Airkrete. We’re at home while they are installing it and there is no odor at all. I’ve installed a small window in a basement wall to keep an eye on possible shrinkage or friability (and also to be able to show it to anyone who wants to take a look!), but the contractor assures that this won’t be an issue (and if it is, he’ll come back to fix it).

Bio-Based Insulation - http://www.biobased.net/ -BioBased Insulation is an award winning manufacturer and marketer of soy-based polyurethane spray foam insulation products. BioBased Insulation and its Certified Dealers (installers) have revolutionized the construction industry by providing high quality insulation products at affordable pricing through the integration of breakthrough environmental technologies. Look above to learn more about the benefits of BioBased Insulation. Also, if you'd like to learn more about soybeans and its many uses, visit the United Soybean Board.