A roof lantern is a daylighting architectural element. Architectural lanterns are part of a larger roof and provide natural light into the space or room below. In contemporary use it is an architectural skylight structure.
A lantern roof will generally mean just the roof of a lantern structure in the West, but has a special meaning in Indian architecture (mostly Buddhist, and stretching into Central Asia and eastern China), where it means a dome-like roof raised by sets of four straight beams placed above each other, "arranged in diminishing squares", and rotated with each set. Normally such a "lantern" is enclosed and provides no light at all. [2]
The term roof top lantern is sometimes used to describe the lamps on roofs of taxis in Japan, designed to reflect the cultural heritage of Japanese paper lanterns.
The glazed lantern was developed during the Middle Ages, one notable medieval example being that atop the 14th-century Octagon Tower at Ely Cathedral in England. Roof lanterns of masonry and glass were used in Renaissance architecture, such as in principal cathedrals. In 16th-century France and Italy, they began usage in orangeries, an early form of a conservatory structure with tall windows and a glazed roof section for wintering citrus trees and other plants in non-temperate climates.
Post-Renaissance roof lanterns were made of timber and glass and were often prone to leaking.
Initially wood-framed in the 18th and 19th centuries, skylights became even more popular in metal construction with the advent of sheet-metal shops during the Victorian era. Virtually every urban row house of the late-19th and early-20th centuries relied upon a metal-framed skylight to illuminate its enclosed stairwell. More elaborate dwellings of the era showed a fondness for the roof lantern, in which the humble ceiling-window design of the skylight is elaborated into a miniature glass-paneled conservatory-style roof cupola or tower. [3]
Modern lanterns benefit from advances in glazing and sealing techniques, plus the development of high performance insulated glass and sealants, which reduce energy loss and provide water-tightness in the same manner as conventional skylights. Typically, roof lanterns are constructed using wood, UPVC or aluminium, or a combination of those materials.
They serve as an architectural feature, distinguished from commercial manufactured skylights by their custom design, providing unique views to the outdoors. Roof lanterns for residential homes are usually constructed using a combination of triangular and trapezoidal segments, fitted within a UPVC or aluminium frame. [4] Traditional architectural styles characterise most roof lanterns in the UK. In the U.S., where the term 'custom' skylight is often used, modern styles of roof lanterns are also common in the building vernacular.
In architecture, a cupola is a relatively small, usually dome-like structure on top of a building often crowning a larger roof or dome. Cupolas often serve as a roof lantern to admit light and air or as a lookout.
A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame in the opening; the sash and frame are also referred to as a window. Many glazed windows may be opened, to allow ventilation, or closed to exclude inclement weather. Windows may have a latch or similar mechanism to lock the window shut or to hold it open by various amounts.
Daylighting is the practice of placing windows, skylights, other openings, and reflective surfaces so that direct or indirect sunlight can provide effective internal lighting. Particular attention is given to daylighting while designing a building when the aim is to maximize visual comfort or to reduce energy use. Energy savings can be achieved from the reduced use of artificial (electric) lighting or from passive solar heating. Artificial lighting energy use can be reduced by simply installing fewer electric lights where daylight is present or by automatically dimming or switching off electric lights in response to the presence of daylight – a process known as daylight harvesting.
Filippo di ser Brunellesco di Lippo Lapi, commonly known as Filippo Brunelleschi and also nicknamed Pippo by Leon Battista Alberti, was an Italian architect, designer, goldsmith and sculptor. He is considered to be a founding father of Renaissance architecture. He is recognized as the first modern engineer, planner, and sole construction supervisor. In 1421, Brunelleschi became the first person to receive a patent in the Western world. He is most famous for designing the dome of the Florence Cathedral, and for the mathematical technique of linear perspective in art which governed pictorial depictions of space until the late 19th century and influenced the rise of modern science. His accomplishments also include other architectural works, sculpture, mathematics, engineering, and ship design. Most surviving works can be found in Florence.
A dome is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a matter of controversy and there are a wide variety of forms and specialized terms to describe them.
Florence Cathedral, formally the Cathedral of Saint Mary of the Flower, is the cathedral of Florence, Italy. It was begun in 1296 in the Gothic style to a design of Arnolfo di Cambio and was structurally completed by 1436, with the dome engineered by Filippo Brunelleschi. The exterior of the basilica is faced with polychrome marble panels in various shades of green and pink, bordered by white, and has an elaborate 19th-century Gothic Revival façade by Emilio De Fabris.
Octagon houses are eight-sided houses that were popular in the United States and Canada mostly in the 1850s. They are characterized by an octagonal (eight-sided) plan and often feature a flat roof and a veranda that circles the house. Their unusual shape and appearance, quite different from the ornate pitched-roof houses typical of the period, can generally be traced to the influence of amateur architect and lifestyle pundit Orson Squire Fowler. Although there are other octagonal houses worldwide, the term octagon house usually refers to octagonal houses built in North America during this period, and up to the early 1900s.
The Galleria Vittorio Emanuele II is Italy's oldest active shopping gallery and a major landmark of Milan. Housed within a four-story double arcade in the centre of town, the Galleria is named after Victor Emmanuel II, the first king of the Kingdom of Italy. It was designed in 1861 and built by architect Giuseppe Mengoni between 1865 and 1877.
A conservatory is a building or room having glass or other transparent roofing and walls, used as a greenhouse or a sunroom. Usually it refers to a space attached to a conventional building such as a house, especially in the United Kingdom. Elsewhere, especially in America, it can often refer to a large freestanding glass-walled building in a botanic garden or park, sometimes also called a palm house if tall enough for trees. Municipal conservatories became popular in the early 19th century.
An orangery or orangerie is a room or dedicated building, historically where orange and other fruit trees are protected during the winter, as a large form of greenhouse or conservatory. In the modern day an orangery could refer to either a conservatory or greenhouse built to house fruit trees, or a conservatory or greenhouse meant for another purpose.
In architecture, an atrium is a large open-air or skylight-covered space surrounded by a building. Atria were a common feature in Ancient Roman dwellings, providing light and ventilation to the interior. Modern atria, as developed in the late 19th and 20th centuries, are often several stories high, with a glazed roof or large windows, and often located immediately beyond a building's main entrance doors.
A sunroom, also frequently called a solarium, is a room that permits abundant daylight and views of the landscape while sheltering from adverse weather. Sunroom and solarium have the same denotation: solarium is Latin for "place of sun[light]". Solaria of various forms have been erected throughout European history. Currently, the sunroom or solarium is popular in Europe, Canada, the United States, Australia, and New Zealand. Sunrooms may feature passive solar building design to heat and illuminate them.
This page is a glossary of architecture.
Cast-iron architecture is the use of cast iron in buildings and objects, ranging from bridges and markets to warehouses, balconies and fences. Refinements developed during the Industrial Revolution in the late 18th century made cast iron relatively cheap and suitable for a range of uses, and by the mid-19th century it was common as a structural material, and particularly for elaborately patterned architectural elements such as fences and balconies, until it fell out of fashion after 1900 as a decorative material, and was replaced by modern steel and concrete for structural purposes.
Bathhouse Row is a collection of bathhouses, associated buildings, and gardens located at Hot Springs National Park in the city of Hot Springs, Arkansas. The bathhouses were included in 1832 when the Federal Government took over four parcels of land to preserve 47 natural hot springs, their mineral waters which lack the sulphur odor of most hot springs, and their area of origin on the lower slopes of Hot Springs Mountain.
Teruel Cathedral or Catedral de Santa María de Mediavilla de Teruel is a Roman Catholic church in Teruel, Aragon, Spain. Dedicated to St. Mary, it is a notable example of Mudéjar architecture. Together with other churches in the town and in the province of Zaragoza, it has been listed as a UNESCO World Heritage Site since 1986.
A skylight is a light-permitting structure or window, usually made of transparent or translucent glass, that forms all or part of the roof space of a building for daylighting and ventilation purposes.
The early domes of the Middle Ages, particularly in those areas recently under Byzantine control, were an extension of earlier Roman architecture. The domed church architecture of Italy from the sixth to the eighth centuries followed that of the Byzantine provinces and, although this influence diminishes under Charlemagne, it continued on in Venice, Southern Italy, and Sicily. Charlemagne's Palatine Chapel is a notable exception, being influenced by Byzantine models from Ravenna and Constantinople. The Dome of the Rock, an Umayyad Muslim religious shrine built in Jerusalem, was designed similarly to nearby Byzantine martyria and Christian churches. Domes were also built as part of Muslim palaces, throne halls, pavilions, and baths, and blended elements of both Byzantine and Persian architecture, using both pendentives and squinches. The origin of the crossed-arch dome type is debated, but the earliest known example is from the tenth century at the Great Mosque of Córdoba. In Egypt, a "keel" shaped dome profile was characteristic of Fatimid architecture. The use of squinches became widespread in the Islamic world by the tenth and eleventh centuries. Bulbous domes were used to cover large buildings in Syria after the eleventh century, following an architectural revival there, and the present shape of the Dome of the Rock's dome likely dates from this time.
Domes built in the 16th, 17th, and 18th centuries relied primarily on empirical techniques and oral traditions rather than the architectural treatises of the time, but the study of dome structures changed radically due to developments in mathematics and the study of statics. Analytical approaches were developed and the ideal shape for a dome was debated, but these approaches were often considered too theoretical to be used in construction.
Domes built in the 19th, 20th, and 21st centuries benefited from more efficient techniques for producing iron and steel as well as advances in structural analysis.