It prevents settling in wall cavities.
Cellulose insulation settling in attic.
While settling is one of blown in cellulose insulation s advantages this can also be a problem mostly with walls.
Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.
Cellulose insulation can settle by as much as 20 percent depending on how it is installed.
The depth required to achieve the proper r value is based on the settled depth in inches.
Cellulose blown in ceiling insulation is a good choice for diyers.
When cellulose soaks up moisture in enclosed areas it can take a long time to dry out.
Additionally professional insulation installers must display a similar chart in the attic verifying the required depth of the insulation has been met.
The mounds of loose material fill.
This process is often called dense packing.
There are also a few drawbacks to cellulose insulation.
In walls standard practice is to install cellulose insulation at 3 0 to 3 5 pcf.
Fortunately a high quality professional installation can prevent most of the problems caused by settling.
This could leave gaps in a wall as the insulation compacts vertically or it could leave space between a floor and the insulation beneath it.