No. You’re not going to have that problem with cellulose insulation, because there have been two significant changes since the ‘old days’ of cellulose insulation. First, the way the product is manufactured. Today’s product is fiberized, which allows for increased coverage and lower settled densities. Second, the machines and techniques to install the product have been greatly upgraded. It may sound like a simple job, but it requires a technically sophisticated, truck or trailer mounted machine to properly install. It also takes specialty training to learn how to correctly install cellulose insulation. So with today’s equipment and techniques, cellulose insulation is ‘dense packed’ in the walls of your building at twice its settled density. In simple terms, that means that the wall or ceiling cavity is filled and is actually under slight pressure from the material. It can’t settle because there is no space left for it to settle into.