A ceiling is an overhead interior surface that covers the upper limits of a

room In a building or large vehicle, like a ship, a room is any enclosed space within a number of walls to which entry is possible only via a door or other dividing structure that connects it to either a passage (architecture), passageway, another roo ...

. It is not generally considered a structural element, but a finished surface concealing the underside of the roof structure or the floor of a story above. Ceilings can be decorated to taste, and there are many fine examples of

fresco Fresco (plural ''frescos'' or ''frescoes'') is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaste ...

es and artwork on ceilings especially in religious buildings. A ceiling can also be the upper limit of a

tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

. The most common type of ceiling is the

dropped ceiling A dropped ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop in ceiling, drop out ceiling, or ceiling til ...

, which is suspended from structural elements above. Panels of

drywall Drywall (also called plasterboard, dry lining, wallboard, sheet rock, gypsum board, buster board, custard board, and gypsum panel) is a panel made of calcium sulfate dihydrate (gypsum), with or without additives, typically extruded between thick ...

are fastened either directly to the ceiling

joist A joist is a horizontal structural member used in framing to span an open space, often between beams that subsequently transfer loads to vertical members. When incorporated into a floor framing system, joists serve to provide stiffness to the s ...

s or to a few layers of moisture-proof plywood which are then attached to the joists. Pipework or ducts can be run in the gap above the ceiling, and insulation and fireproofing material can be placed here. Alternatively, ceilings may be spray painted instead, leaving the pipework and ducts exposed but painted, and using

spray foam Spray foam is a chemical product created by two materials, isocyanate and polyol resin, which react when mixed with each other and expand up to 30-60 times its liquid volume after it is sprayed in place. This expansion makes it useful as a specia ...

. A subset of the dropped ceiling is the suspended ceiling, wherein a network of aluminum struts, as opposed to drywall, are attached to the joists, forming a series of rectangular spaces. Individual pieces of cardboard are then placed inside the bottom of those spaces so that the outer side of the cardboard, interspersed with aluminum rails, is seen as the ceiling from below. This makes it relatively easy to repair the pipes and insulation behind the ceiling, since all that is necessary is to lift off the cardboard, rather than digging through the drywall and then replacing it. Other types of ceiling include the cathedral ceiling, the concave or barrel-shaped ceiling, the stretched ceiling and the

coffer A coffer (or coffering) in architecture is a series of sunken panels in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels was often used as decoration for a ceiling or a vault, also c ...

ed ceiling. Coving often links the ceiling to the surrounding walls. Ceilings can play a part in reducing fire hazard, and a system is available for rating the fire resistance of dropped ceilings.

Types

California Mid-Century Modern Home with open-beam ceiling 1960

Ceilings are classified according to their appearance or construction. A

cathedral A cathedral is a church that contains the '' cathedra'' () of a bishop, thus serving as the central church of a diocese, conference, or episcopate. Churches with the function of "cathedral" are usually specific to those Christian denomination ...

ceiling is any tall ceiling area similar to those in a

church Church may refer to: Religion * Church (building), a building for Christian religious activities * Church (congregation), a local congregation of a Christian denomination * Church service, a formalized period of Christian communal worship * Chris ...

. A

is one in which the finished surface is constructed anywhere from a few inches or centimeters to several feet or a few meters below the structure above it. This may be done for aesthetic purposes, such as achieving a desirable ceiling height; or practical purposes such as acoustic damping or providing a space for

HVAC Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HV ...

piping Within industry, piping is a system of pipes used to convey fluids (liquids and gases) from one location to another. The engineering discipline of piping design studies the efficient transport of fluid. Industrial process piping (and accompan ...

. An inverse of this would be a

raised floor A raised floor (also raised flooring, access floor(ing), or raised-access computer floor) provides an elevated structural floor above a solid substrate (often a concrete slab) to create a hidden void for the passage of mechanical and electrica ...

. A

concave Concave or concavity may refer to: Science and technology * Concave lens * Concave mirror Mathematics * Concave function, the negative of a convex function * Concave polygon, a polygon which is not convex * Concave set * The concavity In ca ...

or barrel-shaped ceiling is curved or rounded upward, usually for visual or acoustical value, while a

ed ceiling is divided into a grid of recessed square or octagonal panels, also called a "lacunar ceiling". A cove ceiling uses a curved plaster transition between wall and ceiling; it is named for cove molding, a molding with a concave curve. A stretched ceiling (or stretch ceiling) uses a number of individual panels using material such as PVC fixed to a perimeter rail.

Elements

Ceilings have frequently been decorated with

painting,

mosaic A mosaic is a pattern or image made of small regular or irregular pieces of colored stone, glass or ceramic, held in place by plaster/mortar, and covering a surface. Mosaics are often used as floor and wall decoration, and were particularly pop ...

tiles Tiles are usually thin, square or rectangular coverings manufactured from hard-wearing material such as ceramic, stone, metal, baked clay, or even glass. They are generally fixed in place in an array to cover roofs, floors, walls, edges, or o ...

and other surface treatments. While hard to execute (at least in place) a decorated ceiling has the advantage that it is largely protected from damage by fingers and dust. In the past, however, this was more than compensated for by the damage from smoke from candles or a fireplace. Many historic buildings have celebrated ceilings. Perhaps the most famous is the

Sistine Chapel ceiling The Sistine Chapel ceiling ( it, Soffitto della Cappella Sistina), painted in fresco by Michelangelo between 1508 and 1512, is a cornerstone work of High Renaissance Renaissance art, art. The Sistine Chapel is the large papal chapel built with ...

Michelangelo Michelangelo di Lodovico Buonarroti Simoni (; 6 March 1475 – 18 February 1564), known as Michelangelo (), was an Italian sculptor, painter, architect, and poet of the High Renaissance. Born in the Republic of Florence, his work was insp ...

. Ceiling height may have psychological impacts.

Fire-resistance rated ceilings

The most common ceiling that contributes to

fire-resistance rating A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving eviden ...

s in commercial and residential construction is the

. In the case of a dropped ceiling, the rating is achieved by the entire

system A system is a group of Interaction, interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment (systems), environment, is described by its boundaries, ...

, which is both the structure above, from which the ceilings is suspended, which could be a

concrete Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most wi ...

floor or a timber floor, as well as the suspension mechanism and, finally the lowest membrane or dropped ceiling. Between the structure that the dropped ceiling is suspended from and the dropped membrane, such as a T-bar ceiling or a layer of

, there is often some room for mechanical and electrical piping, wiring and ducting to run. An independent ceiling, however, can be constructed such that it has a stand-alone fire-resistance rating. Such systems must be tested without the benefit of being suspended from a slab above in order to prove that the resulting system is capable of holding itself up. This type of ceiling would be installed to protect items above from fire. Image:Durasteel_4h_ceiling_1.jpg, An unrestrained non-loadbearing ceiling undergoing a 4-hour fire test. Deflection is measured off the I-beam. Image:Durasteel_4h_ceiling_2.jpg, Durasteel ceiling after successful fire test, being raised from the furnace and readied for an optional 45PSI (3.1 bar) hose-stream test.

Gallery

Image:Ste Chapelle Basse s.jpg, Ceiling from the

Sainte-Chapelle The Sainte-Chapelle (; en, Holy Chapel) is a royal chapel in the Gothic style, within the medieval Palais de la Cité, the residence of the Kings of France until the 14th century, on the Île de la Cité in the River Seine in Paris, France. Co ...

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...

Image:Notre-Dame de Nazareth - Toulouse - JEP 2013 03.JPG, Detail of the ceiling from Chapelle Notre-Dame-de-Nazareth de Toulouse (

Toulouse Toulouse ( , ; oc, Tolosa ) is the prefecture of the French department of Haute-Garonne and of the larger region of Occitania. The city is on the banks of the River Garonne, from the Mediterranean Sea, from the Atlantic Ocean and from Par ...

, France) Image:Oreste Sercelli - Matriz do Espírito Santo esboço do tecto da Capella Mor (Zimborio), Acervo do Museu Paulista da USP (cropped).jpg, Watercolor illustration of a ceiling, by Oreste Sercelli Budynok-vchenyh 05.jpg, Neo-Baroque ceiling in the House of scientists, in

Lviv Lviv ( uk, Львів) is the largest city in western Ukraine, and the seventh-largest in Ukraine, with a population of . It serves as the administrative centre of Lviv Oblast and Lviv Raion, and is one of the main cultural centres of Ukraine ...

(

Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...

) Image:Interieur begane grond, linker voorkamer, stucplafond met stucornament - Baarn - 20338549 - RCE.jpg, Detail of a

stucco Stucco or render is a construction material made of aggregates, a binder, and water. Stucco is applied wet and hardens to a very dense solid. It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and a ...

ceiling from

Baarn Baarn () is a municipality and a town in the Netherlands, near Hilversum in the province of Utrecht. The municipality of Baarn The municipality of Baarn consists of the following towns: Baarn, Eembrugge, Lage Vuursche. The town of Baarn Ba ...

(the

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

) Image:Trier.ceiling.jpg, Demonstrative reconstruction of a Roman suspended ceiling in an Imperial palace of circa AD 306 at

Trier Trier ( , ; lb, Tréier ), formerly known in English as Trèves ( ;) and Triers (see also names in other languages), is a city on the banks of the Moselle in Germany. It lies in a valley between low vine-covered hills of red sandstone in the ...

(Italy) Lightmatter Sistine Chapel ceiling.jpg, Part of the ceiling of the

Sistine Chapel The Sistine Chapel (; la, Sacellum Sixtinum; it, Cappella Sistina ) is a chapel in the Apostolic Palace, the official residence of the pope in Vatican City. Originally known as the ''Cappella Magna'' ('Great Chapel'), the chapel takes its name ...

Vatican City Vatican City (), officially the Vatican City State ( it, Stato della Città del Vaticano; la, Status Civitatis Vaticanae),—' * german: Vatikanstadt, cf. '—' (in Austria: ') * pl, Miasto Watykańskie, cf. '—' * pt, Cidade do Vati ...

in Rome, showing the ceiling in relation to the other frescoes Vatican museum (15205535352).jpg, Corner of the ceiling from the Hall of the Papyri, in the

Vatican Museums The Vatican Museums ( it, Musei Vaticani; la, Musea Vaticana) are the public museums of the Vatican City. They display works from the immense collection amassed by the Catholic Church and the papacy throughout the centuries, including several of ...

(Vatican City) Villa Schutzenberger, ceiling.jpg, Ceiling of the

Villa Schutzenberger The Villa Schutzenberger, also known as Hôtel Schutzenberger (german: link=no, Schützenberger) is an Art Nouveau hôtel particulier on allée de la Robertsau in the Neustadt district of Strasbourg, in the French department of the Bas-Rhin. It h ...

from

Strasbourg Strasbourg (, , ; german: Straßburg ; gsw, label=Bas Rhin Alsatian, Strossburi , gsw, label=Haut Rhin Alsatian, Strossburig ) is the prefecture and largest city of the Grand Est region of eastern France and the official seat of the Eu ...

(France), decorated with

Art Nouveau Art Nouveau (; ) is an international style of art, architecture, and applied art, especially the decorative arts. The style is known by different names in different languages: in German, in Italian, in Catalan, and also known as the Modern ...

ornaments D.A. Sturdza House, Bucharest (Romania) 7.jpg, Corner a ceiling with stuccos in the D.A. Sturdza House, from

Bucharest Bucharest ( , ; ro, București ) is the capital and largest city of Romania, as well as its cultural, industrial, and financial centre. It is located in the southeast of the country, on the banks of the Dâmbovița River, less than north of ...

(Romania) Image:Palatul Bragadiru - detaliu.jpg, Neoclassical ceiling from the Bragadiru Palace, in Bucharest Image:Plafond du grand salon Comte Velbruck - Société littéraire Liège.jpg, Painted ceiling in

Liège Liège ( , , ; wa, Lîdje ; nl, Luik ; german: Lüttich ) is a major city and municipality of Wallonia and the capital of the Belgian province of Liège. The city is situated in the valley of the Meuse, in the east of Belgium, not far from b ...

(Belgium) File:Suspended-ceiling-0a.jpg,

Dropped ceiling A dropped ceiling is a secondary ceiling, hung below the main (structural) ceiling. It may also be referred to as a drop ceiling, T-bar ceiling, false ceiling, suspended ceiling, grid ceiling, drop in ceiling, drop out ceiling, or ceiling til ...

File:Torun Kopernika 21 pietro strop (2).jpg, Wooden beam ceiling

References

External links