Dysfunction Rolled Insulation
Rolled fiberglass only goes so far in insulating your attic.
Cleaned Up
Installers make sure to clean up the attic and extract any unwanted insulation or trash.
Insulation Barrier
Installers make sure to create a barrier between this and the cellulose before blowing the product in.
Dense Cellulose
As you can see, cellulose gives greater coverage and protection again airflow compared to the old, rolled insulation from before.