This is a mineral fiber usg ceiling tile that is fixed into acoustic grids . It has a finely granulated surface texture , which helps reduce light fixtures and energy use . They normally protrudes down if they are drop , and flashes with the acoustic metal grids if they are square edge.
This is a mineral fiber usg ceiling tile that is fixed into acoustic grids . It has a finely granulated surface texture , which helps reduce light fixtures and energy use . They normally protrudes down if they are drop , and flashes with the acoustic metal grids if they are square edge.