| Fiber reinforced gypsum panels are unfaced and have cellulose fiber in the gypsum core. |
| Pack gaps around an insulated chimney with unfaced rock wool or unfaced fiber glass insulation. |
| For extra sound-proofing, fill the space above the suspended ceiling with unfaced fiberglass insulation that is at least three inches thick. |
| If insulation is already there, unfaced is better to use to avoid condensation between barriers. |
| For added soundproofing, fill the cavities between studs with unfaced fiberglass insulation. |
| It is a fiber glass blanket insulation that can be faced, or unfaced, depending on where it is used in the building. |
