thank you for sharing this myth on cellulose insulation,
find the myths on insulation as a whole in the below link
Stephen Harding says:
Please give details on dense packed cellulose for exterior walls. Will it settle, even a little bit, over time? I am very comfortable with cellulose for the attic, and have in fact installed it or upgraded it in half a dozen homes for my family. But the walls... will there be a void at the top of the insulated stud wall cavity after 10 years?
The insulation business in my city is, I believe, fraught with cheats and fools. I have yet to see the attic of a brand new home which had the promised amount of insulation blown in.
Are those same bozos going to short me in my walls? An attic is easy to inspect (so it is amazing that so few people do it) but a closed wall is not so easy.
Any advice you have to offer will be welcome. Thanks.
CIMA Admin says:
The issue of settling is answered fully in this article here on the blog. Potential settling is accounted for in the application by a qualified contractor experienced with cellulose insulation. You can find more information about hiring a contractor on the CIMA website http://cellulose.org/HomeOwners/QuestionsAskContractors.php . Also, a cellulose insulation producer that services your state may also be able to provide recommendations for qualified insulation contractors http://cellulose.org/CIMA/insulation_contractors.php