G GYPSUM BOARD COLLECTION Product information Products / Gypsum Board / Product Details Product description 12 mm Water-Resistant Gypsum Board for Bathroom Ceilings and Partitions Practical humidity-prone interior areas guidance for hotel and residential contractors, with specification checks, source notes, installation risks and procurement que. SEO Title: 12 mm Water-Resistant Gypsum Board for Bathroom Ceilings and Partitions Meta Description: Practical humidity-prone