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51-600: (Redirected from Back Door ) [REDACTED] Look up back door in Wiktionary, the free dictionary. A back door is a door in the rear of a building. Back door may also refer to: Arts and media [ edit ] Back Door (jazz trio) , a British group Porta dos Fundos (literally “Back Door” in Portuguese) Brazilian comedy YouTube channel. Works so titled: The Back Door (fiction) ,

102-516: A key ). Doors may have devices such as knockers or doorbells by which people outside announce their presence. Apart from providing access into and out of a space, doors may have the secondary functions of ensuring privacy by preventing unwanted attention from outsiders, of separating areas with different functions, of allowing light to pass into and out of a space, of controlling ventilation or air drafts so that interiors may be more effectively heated or cooled, of dampening noise , and of blocking

153-560: A 1897 work serialised in Hong Kong "Back Door", a 1969 sound single by Rhinoceros (band) Musical albums: Back Door (album) , a 1972 by English jazz trio Back Door The Back Door (album) , a 1992 album by American band Cherish the Ladies Songs: "Back Door", a 2020 song by South Korean boy group Stray Kids from the album In Life "Backdoor" (song) , a 2020 song by American rapper Lil Durk "Back Door",

204-412: A 1968 blues song written by Clarence Carter and Marcus Daniel " Lookin' out My Back Door ", a rock song by Creedence Clearwater Revival, on their 1970 album Cosmo's Factory Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Back door . If an internal link led you here, you may wish to change the link to point directly to

255-442: A 2021 song by American rapper Pop Smoke from the album Faith Other uses [ edit ] Backdoor (computing) , a hidden method for bypassing normal computer authentication systems Backdoor (basketball) , a play in which a player gets behind the defense and receives a pass for an easy score Backdoor Bay , Ross Island, Antarctica Slang for the human anus See also [ edit ] Backdoor pilot ,

306-474: A door has an effect on production logistics, temperature and pressure control. High-speed cleanroom doors, usually consisting of a transparent material on a stainless steel frame, are used in pharmaceutical industries to allow passage between work areas while admitting minimal contaminants. The powerful high-speed doors have a smooth surface structure and no protruding edges, allowing minimal particle retention and easy cleaning. High-speed doors are made to handle

357-461: A double door. At Kuffeir near Bostra in Syria, Burckhardt found stone doors, 2.74 to 3.048 m (8.99 to 10.00 ft) high, being the entrance doors of the town. In Etruria many stone doors are referred to by Dennis. Ancient Greek and Roman doors were either single doors, double doors, triple doors, sliding doors or folding doors , in the last case the leaves were hinged and folded back. In

408-469: A high number of openings, generally more than 200,000 a year. They must be built with heavy-duty parts and counterbalance systems for speed enhancement and emergency opening function. The door curtain was originally made of PVC, but was later also developed in aluminium and acrylic glass sections. High-speed refrigeration and cold-room doors with excellent insulation values have also been introduced for green and energy-saving requirements. In North America,

459-404: A key to open, going from outside to inside, or from public to private). It is important to get the hand and swing correct on exterior doors, as the transom is usually sloped and sealed to resist water entry, and properly drain. In some custom millwork (or with some master carpenters), the manufacture or installer bevels the leading edge (the first edge to meet the jamb as the door closes) so that

510-498: A power failure. Architectural doors have numerous general and specialized uses. Doors are generally used to separate interior spaces (closets, rooms, etc.) for convenience , privacy , safety , and security reasons. Doors are also used to secure passages into a building from the exterior, for reasons of climate control and safety. Doors also are applied in more specialized cases: Panel doors, also called stile and rail doors, are built with frame and panel construction. EN 12519

561-425: A single piece of wood. People may have believed these were doors to the afterlife, and some include designs of the afterlife. In Egypt, where the climate is intensely dry, doors were not framed against warping, but in other countries required framed doors—which, according to Vitruvius (iv. 6.) was done with stiles (sea/si) and rails (see: Frame and panel ) , the enclosed panels filled with tympana set in grooves in

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612-406: A solid timber frame, filled on one face, face with tongue and groove boards. Quite often used externally with the boards on the weather face. Flushing of a door means the door is flush with the face of the wall on either side. Generally, door swings , or handing, are determined while standing on the outside or less secure side of the door while facing the door (i.e., standing on the side requiring

663-421: A top choice for many homeowners, largely because of the aesthetic qualities of wood. Many wood doors are custom-made, but they have several downsides: their price, their maintenance requirements (regular painting and staining) and their limited insulating value (R-5 to R-6, not including the effects of the glass elements of the doors). Wood doors often have an overhang requirement to maintain a warranty. An overhang

714-552: Is a roof, porch area or awning that helps to protect the door and its finish from UV rays. Steel doors are another major type of residential front doors; most of them come with a polyurethane or other type of foam insulation core – a critical factor in a building's overall comfort and efficiency. Steel doors mostly in default comes along with frame and lock system, which is a high cost efficiency factor compared to wooden doors. Most modern exterior walls provide thermal insulation and energy efficiency , which can be indicated by

765-404: Is activated: In addition to activation sensors, automatically opening doors are generally fitted with safety sensors. These are usually an infrared curtain or beam, but can be a pressure mat fitted on the swing side of the door. The safety sensor prevents the door from colliding with an object by stopping or slowing its motion. A mechanism in modern automatic doors ensures that the door can open in

816-552: Is an early example of the 12th century in Lincoln . In France, the metalwork of the doors of Notre Dame at Paris is a beautiful example, but many others exist throughout France and England. In Italy, celebrated doors include those of the Battistero di San Giovanni (Florence) , which are all in bronze—including the door frames . The modeling of the figures, birds and foliage of the south doorway, by Andrea Pisano (1330), and of

867-641: Is describing the terms which are officially used in European Member States. The main parts are listed below: Also known as ledges and braced, board and batten doors are an older design consisting primarily of vertical slats: As board and batten doors. Impact-resistant doors have rounded stile edges to dissipate energy and minimize edge chipping, scratching and denting. The formed edges are often made of an engineered material. Impact-resistant doors excel in high traffic areas such as hospitals, schools, hotels and coastal areas. This type consists of

918-518: Is far less than the R-40 walls or the R-50 ceilings of super-insulated buildings – passive solar and zero-energy buildings . Typical doors are not thick enough to provide very high levels of energy efficiency. Many doors may have good R-values at their center, but their overall energy efficiency is reduced because of the presence of glass and reinforcing elements, or because of poor weatherstripping and

969-670: Is found in Verona , where the edges of the stiles and rails are beveled and notched. In the Renaissance period, Italian doors are quite simple, their architects trusting more to the doorways for effect; but in France and Germany the contrary is the case, the doors being elaborately carved, especially in the Louis XIV and Louis XV periods, and sometimes with architectural features such as columns and entablatures with pediment and niches,

1020-760: Is nearly impossible pinpoint exactly where and when the first hinges were used. In Ancient Rome , hinges were called cardō and gave name to the goddess Cardea and the main street Cardo . This name cardō lives on figuratively today as "the chief thing (on which something turns or depends)" in words such as cardinal . According to the OED , the English word hinge is related to hang . Other types of hinges include: Since at least medieval times, there have been hinges to draw bridges for defensive purposes for fortified buildings. Hinges are used in contemporary architecture where building settlement can be expected over

1071-449: Is sometimes the case in trains or airplanes, such as for the door to the toilet, which opens inward. It is often useful to have doors which slide along tracks, often for space or aesthetic considerations. A bypass door is a door unit that has two or more sections. The doors can slide in either direction along one axis on parallel overhead tracks, sliding past each other. They are most commonly used in closets to provide access one side of

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1122-519: The Energy Star label or the passive house standards. Premium composite (including steel doors with a thick core of polyurethane or other foam), fiberglass and vinyl doors benefit from the materials they are made from, from a thermal perspective. There are very few door models with an R-value close to 10 (the R-value measures how well a barrier resists the conductive flow of heat). This

1173-624: The Pantheon are similar in design, with narrow horizontal panels in addition, at the top, bottom and middle. Two other bronze doors of the Roman period are in the Lateran Basilica . The Greek scholar Heron of Alexandria created the earliest known automatic door in the first century AD during the era of Roman Egypt . The first foot-sensor-activated automatic door was made in China during

1224-486: The wall is a doorway or portal . A door's essential and primary purpose is to provide security by controlling access to the doorway (portal). Conventionally , it is a panel that fits into the doorway of a building , room , or vehicle . Doors are generally made of a material suited to the door's task. They are commonly attached by hinges , but can move by other means, such as slides or counterbalancing. The door may be able to move in various ways (at angles away from

1275-763: The 11th and 12th centuries there are numerous examples of bronze doors, the earliest being one at Hildesheim , Germany (1015). The Hildesheim design affected the concept of Gniezno door in Poland. Of others in South Italy and Sicily, the following are the finest: in Sant'Andrea , Amalfi (1060); Salerno (1099); Canosa di Puglia (1111); Troia , two doors (1119 and 1124); Ravello (1179), by Barisano of Trani, who also made doors for Trani cathedral ; and in Monreale and Pisa cathedrals, by Bonano of Pisa. In all these cases

1326-738: The Door and Access Systems Manufacturing Association (DASMA) defines high-performance doors as non-residential powered doors characterized by rolling, folding, sliding or swinging action, that are either high-cycle (minimum 100 cycles/day) or high-speed (minimum 20 inches (508 mm)/second), and two out of three of the following: made-to-order for exact size and custom features, able to withstand equipment impact (break-away if accidentally hit by vehicle), or able to sustain heavy use with minimal maintenance. Automatically opening doors are powered open and closed either by electricity, spring, or both. There are several methods by which an automatically opening door

1377-645: The Kennedy Space Center contains the four largest doors. The Vehicle Assembly Building was originally built for the assembly of the Apollo missions' Saturn vehicles and was then used to support Space Shuttle operations. Each of the four doors are 139 meters (456 feet) high. The oldest door in England can be found in Westminster Abbey and dates from 1050. In England in the 17th century

1428-403: The backyard. Such doors are also popular for use for the entrances to commercial structures, although they are not counted as fire exit doors. The door that moves is called the "active leaf", while the door that remains fixed is called the "inactive leaf". A high-speed door is a very fast door some with opening speeds of up to 4 m/s, mainly used in the industrial sector where the speed of

1479-472: The church at Gisors (1575) are carved with figures in niches subdivided by classic pilasters superimposed. In St. Maclou at Rouen are three magnificently carved doors; those by Jean Goujon have figures in niches on each side, and others in a group of great beauty in the center. The other doors, probably about forty to fifty years later, are enriched with bas-reliefs , landscapes, figures and elaborate interlaced borders. NASA 's Vehicle Assembly Building at

1530-455: The closet at a time. Doors in a bypass unit overlap slightly when viewed from the front so they do not have a visible gap when closed. Doors which slide inside a wall cavity are called pocket doors . This type of door is used in tight spaces where privacy is also required. The door slab is mounted to roller and a track at the top of the door and slides inside a wall. Sliding glass doors are common in many houses, particularly as an entrance to

1581-421: The door fits tight without binding. Specifying an incorrect hand or swing can make the door bind, not close properly, or leak. Fixing this error is expensive or time-consuming. In North America, many doors now come with factory-installed hinges, pre-hung on the jamb and sills. While facing the door from the outside or less secure side, if the hinge is on the right side of the door, the door is "right handed"; or if

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1632-400: The door panels were raised with bolection or projecting moldings, sometimes richly carved, around them; in the 18th century the moldings worked on the stiles and rails were carved with the egg-and-dart ornament . There are many kinds of doors, with different purposes: Most doors are hinged along one side to allow the door to pivot away from the doorway in one direction, but not

1683-467: The doorway being in plain masonry. While in Italy the tendency was to give scale by increasing the number of panels, in France the contrary seems to have been the rule; and one of the great doors at Fontainebleau , which is in two leaves, is entirely carried out as if consisting of one great panel only. The earliest Renaissance doors in France are those of the cathedral of St. Sauveur at Aix (1503). In

1734-451: The doorway/portal, by sliding on a plane parallel to the frame, by folding in angles on a parallel plane, or by spinning along an axis at the center of the frame) to allow or prevent ingress or egress. In most cases, a door's interior matches its exterior side. But in other cases (e.g., a vehicle door ) the two sides are radically different. Many doors incorporate locking mechanisms to ensure that only some people can open them (such as with

1785-406: The east doorway by Ghiberti (1425–1452), are of great beauty. In the north door (1402–1424), Ghiberti adopted the same scheme of design for the paneling and figure subjects as Andrea Pisano, but in the east door, the rectangular panels are all filled, with bas-reliefs that illustrate Scripture subjects and innumerable figures. These may the gates of Paradise of which Michelangelo speaks. Doors of

1836-694: The eighth and ninth century, are wrought in bronze, and the west doors of the cathedral of Aix-la-Chapelle (9th century), of similar manufacture, were probably brought from Constantinople, as also some of those in St. Marks, Venice . The bronze doors on the Aachen Cathedral in Germany date back to about 800 AD. Bronze baptistery doors at the Cathedral of Florence were completed in 1423 by Ghiberti. (For more information, see: Copper in architecture ). Of

1887-425: The hanging stile had pivots at the top and bottom. The exact period when the builder moved to the hinge is unknown, but the change apparently brought about another method of strengthening and decorating doors—wrought-iron bands of various designs. As a rule, three bands with ornamental work constitute the hinges, with rings outside the hanging stiles that fit on vertical tenons set into the masonry or wooden frame. There

1938-525: The hanging stile was over 360 millimetres (14 in) diameter. Other sheathings of various sizes in bronze show this was a universal method adopted to protect the wood pivots. In the Hauran in Syria where timber is scarce, the doors were made of stone, and one measuring 1.63 by 0.79 m (64 by 31 in) is in the British Museum; the band on the meeting stile shows that it was one of the leaves of

1989-411: The hinge is on the left, it is "left handed". If the door swings toward you, it is "reverse swing"; or if the door swings away from you, it is "normal swing". In other words: New exterior doors are largely defined by the type of materials they are made from: wood , steel , fiberglass , UPVC /vinyl, aluminum , composite, glass (patio doors) , etc. Wooden doors – including solid wood doors – are

2040-470: The intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Back_door&oldid=1174203544 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Door A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in

2091-540: The life of the building. For example, the Dakin Building in Brisbane , California , was designed with its entrance ramp on a large hinge to allow settlement of the building built on piles over bay mud . This device was effective until October 2006, when it was replaced due to damage and excessive ramp slope. Hinges appear in large structures such as elevated freeway and railroad viaducts, to reduce or eliminate

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2142-466: The lower panels there are figures 3 ft (0.91 m). high in Gothic niches , and in the upper panels a double range of niches with figures about 2 ft (0.61 m). high with canopies over them, all carved in cedar . The south door of Beauvais Cathedral is in some respects the finest in France; the upper panels are carved in high relief with figure subjects and canopies over them. The doors of

2193-562: The mosques in Cairo were of two kinds: those externally cased with sheets of bronze or iron, cut in decorative patterns, and incised or inlaid, with bosses in relief; and those of wood-framed with interlaced square and diamond designs. The latter design is Coptic in origin. The doors of the palace at Palermo , which were made by Saracenic workmen for the Normans , are fine examples in good preservation. A somewhat similar decorative class of door

2244-415: The other. The axis of rotation is usually vertical. In some cases, such as hinged garage doors , the axis may be horizontal, above the door opening. Doors can be hinged so that the axis of rotation is not in the plane of the door to reduce the space required on the side to which the door opens. This requires a mechanism so that the axis of rotation is on the side other than that in which the door opens. This

2295-545: The reign of Emperor Yang of Sui (r. 604–618), who had one installed for his royal library. Gates powered by water featured in illustrations of the automatons of the Arab inventor Al-Jazari . Copper and its alloys were integral in medieval architecture. The doors of the church of the Nativity at Bethlehem (6th century) are covered with plates of bronze, cut out in patterns. Those of Hagia Sophia at Constantinople , of

2346-437: The spread of fire . Doors can have aesthetic , symbolic , ritualistic purposes. Receiving the key to a door can signify a change in status from outsider to insider. Doors and doorways frequently appear in literature and the arts with metaphorical or allegorical import as a portent of change. The earliest recorded doors appear in the paintings of Egyptian tombs, which show them as single or double doors, each of

2397-807: The stiles and rails. The stiles were the vertical boards, one of which, tenoned or hinged , is known as the hanging stile, the other as the middle or meeting stile. The horizontal cross pieces are the top rail, bottom rail, and middle or intermediate rails. The most ancient doors were made of timber, such as those referred to in the Biblical depiction of King Solomon's temple being in olive wood (I Kings vi. 31–35), which were carved and overlaid with gold. The doors that Homer mentions appear to have been cased in silver or brass. Besides olive wood, elm , cedar , oak and cypress were used. Two doors over 5,000 years old have been found by archaeologists near Zürich, Switzerland. Ancient doors were hung by pintles at

2448-534: The tomb of Theron at Agrigentum there is a single four-panel door carved in stone. In the Blundell collection is a bas-relief of a temple with double doors, each leaf with five panels. Among existing examples, the bronze doors in the church of SS. Cosmas and Damiano , in Rome, are important examples of Roman metal work of the best period; they are in two leaves, each with two panels, and are framed in bronze. Those of

2499-722: The top and bottom of the hanging stile, which worked in sockets in the lintel and sill , the latter in some hard stone such as basalt or granite . Those Hilprecht found at Nippur , dating from 2000 BC, were in dolerite . The tenons of the gates at Balawat were sheathed with bronze (now in the British Museum ). These doors or gates were hung in two leaves, each about 2.54 m (100 in) wide and 8.2 m (27 ft) high; they were encased with bronze bands or strips, 25.4 cm (10.0 in) high, covered with repoussé decoration of figures. The wood doors would seem to have been about 7.62 cm (3.00 in) thick, but

2550-435: The use of existing series in assessing potential audience reaction to a proposed television series Backdoor breaking ball , a type of pitch Backdoor.Win32.IRCBot , a computer worm Music: Backdoor progression , in music theory, characteristic harmonic device used in many "jazz standards" Works: " Back Door Man ", a 1960 blues song, written by Willie Dixon & recorded by Howlin' Wolf " Back Door Santa ",

2601-428: The way the door is manufactured. Door weatherstripping is particularly important for energy efficiency. German-made passive house doors use multiple weatherstrips, including magnetic strips, to meet higher standards. These weatherstrips reduce energy losses due to air leakage. Hinge Ancient remains of stone, marble, wood, and bronze hinges have been found. Some date back to at least Ancient Egypt , although it

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