improved ceiling tiles and exposure type grid support system

摘要

A ceiling tile (1) with specially designed side edge details of cut out sections (9) on two opposite edges of the tile and slots (5 and 6) and edges (7 and 8) on the other two sides to enable the tile to be positioned in a standard ''exposed grid system'' such that when the tile is fixed in position it conceals the gridwork and is fully demountable.