BLOWN IN WOOL FIBER
This insulation is great for attic spaces and exterior walls. It can be blown into a closed wall by drilling holes or if the wall is open on one side a mesh can be applied then the insulation can be blown behind the mesh.
CLOSED CELL SPRAY
For under roof, over ceiling, exterior walls, under floors and crawl spaces. This would be the best insulation to choose for places that a vapor barrier is needed or in high moisture areas.
BLOWN IN CELLULOSE
This insulation can be used in the same manner as the Blown-in Wool Fiber. The difference between the two is the cellulose will settle over time, losing its R-Value as it does and is less expensive.