Thankyou "Racine Insulation" for the response.
A basement crawl is exactly what I am talking about.
Do you have any info/links on 2 part spray foam for a DIYer? Best place to buy and reqd equipment etc? Or is it just a case of adding an adhesive to the cellulose (sorry, Im a newby when comes to insulation)
Thanks again, look forward to any info you can give.