CHAPTER 03: ARCHITECTURAL INTERIOR/INTERIOR DESIGN CEILING - Th e overhead interior surface or lining of a room Suspended ceiling - a ceiling suspended from an overhead floor or roof structure to provide space for pipes, ductwork, light fixtures, or other service equipment. Plenum - the space between a suspended ceiling and the floor structure above Drop ceiling - a secondary ceiling formed to provide space for piping or ductwork, or to alter the proportions of a room Acoustical ceiling - a ceiling of acoustical tile or other sound-absorbing material Cross tee - a secondary member of the grid supporting a suspended ceiling system, usually a sheet-metal tee carried by the main runners. Main runner - a principal member of the grid supporting a suspended ceiling System, usually a sheet-metal channel or tee suspended by hanger wires from the overhead structure. Spline - a thin metal strip inserted into the edges of two acoustical tiles to make a butt joint between them. Kerf - a groove cut into the edges of an acoustical tile to receive a spline or t shaped member of a supporting grid Acoustical tile - tile made in various sizes and textures from a soft, sound absorbing material Metal pan - an acoustical tile consisting of a steel or aluminum pan having a perforated face and containing a separate layer of sound-absorbing material Exposed grid - metal grid of inverted tees supporting the acoustical tiles of a suspended ceiling Recessed grid - metal grid supporting a suspended ceiling of acoustical tiles having rabbeted joints Concealed grid - metal grid supporting the acoustical tiles of a suspended ceiling, hidden within kerfs cut into the edges of the tiles Integrated ceiling - suspended ceiling system incorporating acoustical, lighting, and air-handling components into a unified whole Linear diffuser - long narrow diffuser designed to disperse air through slots between the panels of an integrated ceiling system Cove ceiling – a ceiling having a cove Cove - concave surface forming part of a ceiling at its edge so as to eliminate the usual interior angle between the wall and the ceiling Camp ceiling – ceiling having the form of a truncated pyramid Beam ceiling – underside of a floor showing the supporting beams and finishes to form a ceiling Coffer - one of a number recessed, usually square or octagonal panels in a ceiling. Also called caisson, lacunar Lacunar - a ceiling, soffit, or vault adorned with a pattern of recessed panels Plafond – a flat or vaulted ceiling of decorative character Louvered ceiling - suspended ceiling of multicellular louvers for shielding the light sources mounted above it Luminous ceiling - suspended ceiling of translucent panels for diffusing the light from luminaires mounted above it Linear metal ceiling - suspended ceiling system of narrow metal strips, usually incorporating modular lighting and air-handling components
CHAPTER 03: ARCHITECTURAL INTERIOR/INTERIOR DESIGN DAYLIGHTING - The science, theory or method of providing illumination through the use of light of day Skylight - the light from the sky, reflected and diffused by air molecules Ground light - sunlight or skylight reflected by surfaces below the plane of the horizon Sunlight – direct light of the sun Clear sky - sky having less than 30% cloud cover with the solar disk unobstructed Crosslight - Light originating from sources not facing each other Counterlight - Light originating from sources facing each other Light pipe - A pipe or tube lined with highly reflective and designed to transport light some distance from a single point source. Also called light tube, solar tube, sun pipe. Heliostat - An instrument containing a computer controlled mirror that automatically moves to reflect sunlight in a fixed direction Light shelf - A horizontal overhang that shades glazing from direct sunlight below while reflecting daylight through glazing above onto the ceiling of a room and more deeply into a space Sun control - Any of various exterior devices for regulating the amount of solar heat and sunlight that enters a window, consisting of movable horizontal or vertical fins controlled manually or operated automatically with time or photoelectric controls Sunshade - Any of various exterior devices consisting of fixed horizontal or vertical fins angled to shield a window from direct sunlight Brise-soleil- A screen, usually of louvers, placed on the outside of a building to shield the windows from direct sunlight Solar screen - A panel of miniature external louvers for Shading a window from direct sunlight and glare while allowing a high degree of visibility, daylighting, ventilation, visual daytime privacy. and insect protection Shutter blind - A manually or electrically controlled exterior venetian blind for protecting a building interior from solar gain and glare Shutter panel - A louvered awning, the metal fins of which are angled to shade a window from direct sunlight and glare while preserving the outside view and admitting soft, diffused light