Blown insulation can be installed into any attic space and it can insulate the living space below. Blown in attic insulation is very cost effective, more so than faced batts, and is resistant to pests. Blown in insulation is proven to not make a good home for rodents, birds, and insects, and is resistant to moisture and mold.
Another great advantage to blown in fiberglass is its noise-canceling effects, reducing the noise of busy highways, airports, and storms.
Most people see the cost of the installation return to them in money saved on energy bills over the next 2 to 4 years, because of this energy efficiency.