This photo is after blowing in the cellulose insulation, but prior to the ceiling repair. The TruSoft cellulose not only compresses existing fiberglass batts and adds insulation value, but the density stops airflow through the floor. As an additional benefit, Trusoft is treated with a nontoxic borate solution that gives the material a Class 1 (the highest) fire safety rating, while also making it resistant to mold and insects.