moisture-resistant drywall is screwed with black self-tapping screws into a metal profile frame close-up

assembly black blue building cardboard ceiling characteristics cladding close-up closeup comfortable construction cradle dihydrate dough drywall empty fastening filler frame green gypsum humidity inexpensive into layout light lining materials metal moisture moisture-resistant monolithic partition plaster practical profile reinforced resistant screwed screws self-tapping selftapping sheet stiffeners universal wall work