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The impluvium (pl.: impluvia) is a water-catchment pool system meant to capture rain-water flowing from the compluvium, or slanted roof. [1] [2] Often placed "inside", instead of "outside", a building, it is a notable feature in many architectural traditions.
In Greco-Roman architectural studies, the impluvium refers to the sunken part of the atrium in a Greek or Roman house ( domus ), designed to carry away the rainwater falling from the compluvium of the roof. It is usually made of marble and placed about 30 cm below the floor of the atrium, and emptied into a subfloor cistern. [3]
Inspection (without excavation) of impluvia in Paestum, Pompeii and Rome indicated that the pavement surface in the impluvia was porous, or that the non-porous stone tiles were separated by gaps significant enough to allow a substantial quantity of water caught in the basin of the impluvium to filter through the cracks and, beyond, through layers of gravel and sand into a holding chamber below ground. A circular stone opening protected with a puteal allows easy access by bucket and rope to this private, filtered and naturally cooled water supply.
Similar water supplies were found elsewhere in the public spaces of the city, with their stone puteals showing the wear patterns of much use. In wet seasons, excess water that could not pass through the filter would overflow the basin and exit the building, and any sediment or debris remaining in the surface basin could be swept away. In hot weather, water could be drawn from the cistern chamber (or fetched by slaves from supplies outside the domus) and cast into the shallow pool to evaporate and provide a cooling effect to the entire atrium: as the water evaporated, air drawn in through the compluvium was cooled and moved throughout the house to cool the surrounding living spaces, a form of passive cooling. The combination of compluvium and impluvium formed an ingenious, effective and attractive manner of collecting, filtering and cooling rainwater.
Denyer, African Traditional Architecture, defined an impluvial style of architecture in West Africa, wherein "four buildings usually faced one another across [a] courtyard". [4] Buildings of the "style" (really, a "clade-based" type), did not necessarily feature an impluvium to capture rain. [5] Further complicating matters, some texts have conflated Denyer's impluvial style with impluvium itself, and thereby take impluvium to refer not to the use of mechanisms to capture water, but instead to court yard-centered house plans. [6] [7]
Impluvia have been observed in many West/Central-African architectural traditions, including those of the Igbo, Yoruba, Edo, Jola [8] and Bamum. These ranged in complexity: Yoruba impluvia, referred to as akodi, [9] sometimes only amounted to pots placed at the corners of vast rectilinear courtyards, [10] while some in Ketu, Benin Republic, were drained into underground tanks. [11] Commoners in the Benin kingdom usually had houses with multiple impluvia in their one or two court spaces, sometimes drained out of the house by pipes. As Nevadomsky et al. note, these impluvia were meant to remove rain water so that the open roof could be used as a light source and source of fresh air. [12] While many previous examples have been rectilinear, the impluvia of Senegal could also be designed around round floor plans; [13] this has become the basis for the 'Case à Impluvium" in Ziguinchor, Senegal, a centre of the arts run by the Alliance Franco-Sénégalaise.
19th and 20th century European travelers were often surprised to find parallels to classical culture in those architectural traditions that had clear ones: "In the Bamum area there is an interesting type of hut. In referring to it Ankermann says: "The men's houses (Herrenhäuser) in Bamum, in contrast to those of the women, show a most complicated structure. I was very much astonished when I entered for the first time to find myself in an actual Roman atrium with an impluvium in the middle, with the roof sloping towards the middle, and supported by columns." [14] This resulted in a number of theories attempting to tie West and Central African impluvium to Greco-Roman, Egyptian, and Portuguese influences. [15] [16] [17] While Kalaous rejects the possibility of Portuguese influence, he writes that "The Old Mediterranean influence seems to be more plausible but did not necessarily come via Egypt... Of course, this does not prove that there were contacts between the Etruscans and the peoples of what is now Southern Nigeria, but the existence of impluvium there (and elsewhere in West Africa) is certainly not easy to explain in terms of a quite independent origin." [18] Denyer, on the other hand, notes that "No really large settlement could have taken place in this area [Southern Nigeria] before a means of collecting water had been found", to save for the dry season and to manage erosion. [19] Most bluntly, Nevadomsky et al. write that "One need not postulate an external source for what was in all probability an independent evolution of space and form. The impluvium house could easily have arisen in a climate of hot sunshine and heavy seasonal rainfall." [20] [21]
A courtyard or court is a circumscribed area, often surrounded by a building or complex, that is open to the sky.
Ifẹ̀ is an ancient Yoruba city in south-western Nigeria, founded in the 6th century. The city is located in present-day Osun State. Ifẹ̀ is about 218 kilometers northeast of Lagos with a population of over 500,000 people, which is the highest in Osun State according to population census of 2006.
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.
In Roman architecture, a tablinum was a room generally situated on one side of the atrium and opposite to the entrance; it opened in the rear onto the peristyle, with either a large window or only an anteroom or curtain. The walls were richly decorated with fresco pictures, and busts of the family were arranged on pedestals on the two sides of the room.
In ancient Rome, the domus was the type of town house occupied by the upper classes and some wealthy freedmen during the Republican and Imperial eras. It was found in almost all the major cities throughout the Roman territories. The modern English word domestic comes from Latin domesticus, which is derived from the word domus. Along with a domus in the city, many of the richest families of ancient Rome also owned a separate country house known as a villa. Many chose to live primarily, or even exclusively, in their villas; these homes were generally much grander in scale and on larger acres of land due to more space outside the walled and fortified city.
A windcatcher, wind tower, or wind scoop is a traditional architectural element, originated in Iran (Persia), used to create cross ventilation and passive cooling in buildings. Windcatchers come in various designs, depending on whether local prevailing winds are unidirectional, bidirectional, or multidirectional, on how they change with altitude, on the daily temperature cycle, on humidity, and on how much dust needs to be removed. Despite the name, windcatchers can also function without wind.
Owo is a local government area in Ondo state, Nigeria. Between 1400 and 1600 CE, it was the capital of a Yoruba city-state. The local government area has a population of 222,262 based on 2006 population census.
Cavaedium or atrium are Latin names for the principal room of an ancient Roman house, which usually had a central opening in the roof (compluvium) and a rainwater pool (impluvium) beneath it. The cavaedium passively collected, filtered, stored, and cooled rainwater. It also daylit, passively cooled and passively ventilated the house.
In architecture, a lightwell, sky-well, or air shaft is an unroofed or roofed external space provided within the volume of a large building to allow light and air to reach what would otherwise be a dark or unventilated area. Lightwells may be lined with glazed bricks to increase the reflection of sunlight within the space. Lightwells may have sunlight reflecting mirrors on the top of light well.
Sultan Ibrahim Njoyac. 1860 – c. 1933 in Yaoundé, was seventeenth in a long dynasty of kings that ruled over Bamum and its people in western Cameroon dating back to the fourteenth century, and Neographer having invented the Bamum syllabary. He succeeded his father Nsangu, and ruled from 1886 or 1887 until his death in 1933, when he was succeeded by his son, Seidou Njimoluh Njoya. He ruled from the ancient walled city of Fumban.
The Yoruba of West Africa are responsible for a distinct artistic tradition in Africa, a tradition that remains vital and influential today.
The Yoruba people are a West African ethnic group who mainly inhabit parts of Nigeria, Benin, and Togo. The areas of these countries primarily inhabited by the Yoruba are often collectively referred to as Yorubaland. The Yoruba constitute more than 48 million people in Africa, are over a million outside the continent, and bear further representation among members of the African diaspora. The vast majority of the Yoruba population is today within the country of Nigeria, where they make up 20.7% of the country's population according to Ethnologue estimations, making them one of the largest ethnic groups in Africa. Most Yoruba people speak the Yoruba language, which is the Niger-Congo language with the largest number of native or L1 speakers.
The House of Sallust was an elite residence (domus) in the ancient Roman city of Pompeii and among the most sumptuous of the city.
The Gies College of Business Instructional Facility (BIF) is a state-of-the-art business facility designed by Pelli Clarke Pelli Architects located on the Champaign campus at the University of Illinois Urbana–Champaign (UIUC).
Architecture of Nigeria was historically influenced by environmental conditions as well as social and cultural factors. The coming of missionaries and political changes brought about by colonialism precipitated a change in architectural style and utility of buildings. A Gothic revival style was adopted for early churches built in the colony of Lagos. A one or two-storey timber house building made with pre-fabricated material components and designed with the influence of classic antiquity styles served as mission house for the missionaries. Colonial residents working for the Public Works Department introduced a variant of neoclassical architecture to designs of government buildings and private residencies.
Hausa architecture is the architecture of the Hausa people of Northern Nigeria and Niger. Hausa architectural forms include mosques, walls, common compounds, and gates. Hausa traditional architecture is an integral part of how Hausa people construct a sense of interrelatedness with their physical environment. The architectural program used in this society is one disciplined by Islam and results in a highly organized spatial structure which is used to express features of Hausa culture.
A salsabil, also known as a shadirwan, is a type of fountain which maximizes the surface area of the water. It is used for evaporative cooling of buildings, cooling and aeration of drinking water, and ornament. The water may flow in a thin sheet or thin streams, often over a wavy surface with many little waterfalls. Its use extends from southern Spain through north Africa and the Middle East to northern India.
Yoruba architecture describes the architectural styles of the Yoruba people of West Africa, dating back to approximately the 8th century. and lasted up to and beyond the colonial period beginning in the 19th century CE.
The Ife Empire was the first empire in Yoruba history. It was founded in what is now southwestern Nigeria and eastern Benin. The Ife Empire lasted from 1200 to 1420. The empire was formed by Odùduwà, and became well-known for its sophisticated art pieces. Although Yoruba was the main language of the empire, there were also various spoken dialects and languages. It rose to power through trade with Sahelian and forest states. Its capital city, Ilé-Ife, was one of the largest urban centers in 14th century West Africa.
Igbo Architecture are architectural styles developed by the Igbo people. Igbo architecture particularly in the pre-colonial era, was deeply rooted in the culture, environment, and available local resources. While there might be variations based on different communities and regions within the Igbo territory, here are some detailed characteristics of traditional or pre-colonial Igbo architecture.
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