Loose-fill insulation, also known as blown-in insulation, is blown or sprayed into place with special equipment. You can rent an insulation blowing machine to install this insulation yourself, but most choose to leave this installation to professionals.
Best for attics, hard-to-reach or oddly shaped areas and already insulated areas.
Usually made of fiberglass, cellulose or mineral wool.
Blown or sprayed into place with pneumatic equipment.
Can fill wall cavities.
Mid-range prices when compared to other insulation types.
R-values range from R-2.2 to R-3.8, depending on the insulation material.