ABSTRACT
Architects undertake Reflected Ceiling Plan drawings – usually one for each floor – where the lights, air grilles, ceiling tiles, sprinklers and other fittings, etc. are set out. Modern office ceilings typically consist of a regular grid of ceiling tiles set into a regular grid of lightweight metal tracks, laid out at one consistent height above the floor. If an office space has a suspended ceiling, then the space above the ceiling is known as the ‘plenum’. A ceiling tile has a number of main functional purposes. Basic standards for ceiling tiles have either a square edge (SE) or a rebated edge (RE), which alludes to the way the tile sits in the grid. An SE tile sits with the tile face at the same finished ceiling level as the ceiling grid, while with a RE tile, the visible face is about 6mm lower than the grid and creates a negative detail around the tile.
