It is unlike batts or sheets of materials used to line walls to retain or keep out heat. Blown-in insulation uses fine fibers ...

Mineral stone wool insulation batts are slightly better insulators ... A 2×4 stud cavity filled with blown-in cellulose has ...

Recent studies have indicated that the preferred method of attic insulation is a fiberglass batt format vs. blown-in cellulose insulation, which can shift and/or compact. Checking with local ...