Featuring superior fire protection and extraordinary dimensional stability, these face-laminated gypsum panels also provide good ceiling attenuation class values. USG Sheetrock® Brand Clean Room Lay-in Gypsum Ceiling Panels adhere to strict federal standards and USDA/FSIS requirements, and they meet strict requirements for food processing areas. The panels are perfect for exterior soffits, parking garages, kitchens, food preparation areas, restrooms, utility areas, locker rooms and marine environments.