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Nicely done. I liked your inclusion of DYI resources. It may enhance clarity if your figure 2 (there are two figure 2's BTW) regarding R-values was moved to a location where it does not disrupt the presentation of your sources. --Nfc5 20:26, 29 September 2010 (UTC)
I enjoyed the background information of how the product came about, it is detailed well. Page layout is good, except the last image with the map and chart is in an odd spot. Maybe add resources on where to purchase cellulose insulation and find prices/producers/distributors. Possibly reference figures/tables in text. Issues with figure numbering. LynetteVillagomez