| 释义 |
gypsum sheathing gypsum sheathingA wallboard having a gypsum water-repellent core; surfaced with a water-repellent paper; usually 2 or 4 ft (61 or 122 cm) wide, 8 ft (243.8 cm) long, and ½ in. (1.27 cm) thick; used as a base for exterior wall coverings. |