Blown Insulation for Attics: Fiberglass vs. Cellulose
Both perform better than batts and are less expensive than spray polyurethane. Neither is perfect.
How to Install Cellulose Insulation
Insulation expert Bill Hulstrunk provides detailed instructions for blowing loose-fill cellulose on attic floors and dense-packing walls
Blown-In or Loose-Fill Insulation
Fill the Whole Framing Cavity — Even Irregularly Shaped Ones