Condition of Existing Insulation: If the fiberglass insulation is in good shape—dry, fluffy, and evenly distributed—it may not need to be removed; however, attic insulation that's compressed ...
Removing blown-in insulation requires a slightly different approach compared to batts. This type of insulation, often made of fiberglass or cellulose, is loose and spread evenly across the attic ...
Insulating your attic walls is one of the best ways to ... Mixing types, like adding fiberglass batts over loose-fill insulation or blown-in cellulose, is also fine.
"Our attic is so poorly insulated we're basically living in a cardboard box," they wrote. "The cost [of air sealing] was almost double price for just doing blown in insulation. I know it should be ...