The problem is vermin, rats and mice which will infest the fleece, clothes moth too. Then they don't stay in the fleece but move out into your house. I did investigate using our sheepsfleece for insulating our house but I felt it would be massively difficult and doomed to failure for us now. The alternative, of buying in someone else's fleece manufactured into insulation, turns out to be one of the most expensive ways of doing it.
This is such a shame because otherwise wool straight from the sheep is a wonderful, renewable, delightful product which many producers are just burning. I rage against myself because I'm about to burn some fleeces left over from last year, and I hate doing so.
What it needs [member=40370]TonyG[/member] is for someone who is an entrepreneur and a sheep farmer to take on the production of home insulation from sheeps fleece on such a scale that we no longer have the wool crop being burned and the end product is affordable and useable, for everyone. Something along the lines of how Iceland uses its geothermal energy to heat everyone's home, provide outdoor heated pools etc.
There's a challenge