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Window
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. In addition to this, many modern day windows may have a window screen or mesh, often made of aluminum or fibreglass, to keep bugs out when the window is opened. Types include the eyebrow window, fixed windows, hexagonal windows, single-hung, and double-hung sash windows, horizontal sliding sash windows, casement windows, awning windows, hopper windows, tilt, and slide windows (often door-sized), tilt and turn windows, transom windows, sid ...
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Sash Window
A sash window or hung sash window is made of one or more movable panels, or "sashes". The individual sashes are traditionally paned window (architecture), paned windows, but can now contain an individual sheet (or sheets, in the case of double glazing) of glass. History The oldest surviving examples of sash windows were installed in England in the 1670s, for example at Ham House.Louw, HJ, ''Architectural History'', Vol. 26, 1983 (1983), pp. 49–72, 144–15JSTOR The invention of the sash window is sometimes credited, without conclusive evidence, to Robert Hooke. Others see the sash window as a Dutch invention. H.J. Louw believed that the sash window was developed in England, but concluded that it was impossible to determine the exact inventor. The sash window is often found in Georgian architecture, Georgian and Victorian architecture, Victorian houses, and the classic arrangement has three panes across by two up on each of two sash, giving a ''six over six'' panel window, alth ...
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Window Sash
A sash window or hung sash window is made of one or more movable panels, or "sashes". The individual sashes are traditionally paned windows, but can now contain an individual sheet (or sheets, in the case of double glazing) of glass. History The oldest surviving examples of sash windows were installed in England in the 1670s, for example at Ham House.Louw, HJ, ''Architectural History'', Vol. 26, 1983 (1983), pp. 49–72, 144–15JSTOR The invention of the sash window is sometimes credited, without conclusive evidence, to Robert Hooke. Others see the sash window as a Dutch invention. H.J. Louw believed that the sash window was developed in England, but concluded that it was impossible to determine the exact inventor. The sash window is often found in Georgian and Victorian houses, and the classic arrangement has three panes across by two up on each of two sash, giving a ''six over six'' panel window, although this is by no means a fixed rule. Innumerable late Victorian and Edwa ...
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Casement Window
A casement window is a window that is attached to its frame by one or more hinges at the side. They are used singly or in pairs within a common frame, in which case they are hinged on the outside. Casement windows are often held open using a casement stay. Windows hinged at the top are referred to as awning windows, and ones hinged at the bottom are called hoppers. Overview Throughout Britain and Ireland, casement windows were common before the sash window was introduced. They were usually metal with leaded glass, which refers to glass panes held in place with strips of lead called cames (leaded glass should not be confused with lead glass, which refers to the manufacture of the glass itself). These casement windows usually were hinged on the side, and opened inward. By the start of the Victorian era, opening casements and frames were constructed from timber in their entirety. The windows were covered by functional exterior shutters, which opened outward. Variants of casement ...
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Window Screen
A window screen (also known as insect screen, bug screen, fly screen, flywire, wire mesh, or window net) is designed to cover the opening of a window. It is usually a mesh made of metal, fiberglass, fibreglass, plastic wire, or other pieces of plastic and stretched in a Frame and panel, frame of wood or metal. It serves to keep leaves, debris, bugs, birds, and other animals from entering a building or a screened porch, screened structure such as a porch, without blocking fresh air-flow. Most houses in Australia, the United States and Canada and other parts of the world have screens on windows to prevent entry of flying insects such as Mosquito, mosquitoes, flies and Wasp, wasps. In some regions such as the northern United States and Canada, screens were required to be replaced by glass storm windows in the winter, but now combination storm and screen windows are available, which allow glass and screen panels to slide up and down. For screens installed on aluminium frames, the m ...
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Bay Window
A bay window is a window space projecting outward from the main walls of a building and forming a bay in a room. Types Bay window is a generic term for all protruding window constructions, regardless of whether they are curved or angular, or run over one or multiple storey A storey (British English) or story (American English) is any level part of a building with a floor that could be used by people (for living, work, storage, recreation, etc.). Plurals for the word are ''storeys'' (UK) and ''stories'' (US). T ...s. In plan, the most frequently used shapes are isosceles trapezoid (which may be referred to as a ''canted (architecture), canted bay window'') and rectangle. But other polygonal shapes with more than two corners are also common as are curved shapes. If a bay window is curved it may alternatively be called ''bow window.'' Bay windows in a triangular shape with just one corner exist but are relatively rare. A bay window supported by a corbel, Bracket (archite ...
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Glazing (window)
Glazing, which derives from the Middle English for 'glass', is a part of a wall or window, made of glass. Glazing also describes the work done by a professional "glazier". Glazing is also less commonly used to describe the insertion of ophthalmic lenses into an eyeglass frame. Common types of glazing that are used in architectural applications include clear and tinted float glass, tempered glass, and laminated glass as well as a variety of coated glasses, all of which can be glazed singly or as double, or even triple, glazing units. Ordinary clear glass has a slight green tinge but special colorless glasses are offered by several manufacturers. Glazing can be mounted on the surface of a window sash or door stile, usually made of wood, aluminium or PVC. The glass is fixed into a rabbet (rebate) in the frame in a number of ways including triangular glazing points, putty, etc. Toughened and laminated glass can be glazed by bolting panes directly to a metal framework by bolts pa ...
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Lancet Window
A lancet window is a tall, narrow window with a pointed arch at its top. It acquired the "lancet" name from its resemblance to a lance. Instances of this architectural element are typical of Gothic church edifices of the earliest period. Lancet windows may occur singly, or paired under a single moulding, or grouped in an odd number with the tallest window at the centre. The lancet window first appeared in the early French Gothic period (c. 1140–1200), and later in the English period of Gothic architecture (1200–1275). So common was the lancet window feature that this era is sometimes known as the "Lancet Period".Gothic Architecture in England
Retrieved 24 October 2006 The term ''lancet window'' is properly applied to windows of austere form, without

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Oriel Window
An oriel window is a form of bay window which protrudes from the main wall of a building but does not reach to the ground. Supported by corbels, bracket (architecture), brackets, or similar cantilevers, an oriel window is most commonly found projecting from an upper floor but is also sometimes used on the ground floor. Oriel windows are seen in Arab architecture in the form of mashrabiya and in Turkish are known as ''şahnişin'' or ''cumba''. In Islamic culture, these windows and balconies project from the street-front of a house, providing an area in which women could peer out and see the activities below while remaining invisible. Origins According to the ''Oxford English Dictionary'', the term ''oriel'' is derived from Anglo-Norman language, Anglo-Norman ' and Late Latin ', both meaning "gallery" or "porch", perhaps from Classical Latin ' ("curtain"). * Oriel College, Oxford, took its name from a balcony or oriel window forming a feature of a building which occupied the ...
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Hexagonal Window
A hexagonal window (also Melnikov's or honeycomb window) is a hexagon-shaped window, resembling a bee cell or crystal lattice of graphite. The window can be vertically or horizontally oriented, openable or fixed. It can also be regular or elongately-shaped and can have a separator (mullion). Typically, the cellular window is used for an attic or as a decorative feature, but it can also be a major architectural element to provide the natural lighting inside buildings. The hexagonal window is relatively rare and associated with such architectural styles as constructivism, functionalism and, occasionally, cubism. History Attic hexagonal windows were occasionally used in the Northern European manor architecture of the 19th century. The concept became popular thanks to the Russian constructivist architect Konstantin Melnikov, whose own famous house had 124 hexagonal windows, which were the main source of light as ceiling lights were not provided in many rooms. Cellular windows are also ...
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Clerestory
In architecture, a clerestory ( ; , also clearstory, clearstorey, or overstorey) is a high section of wall that contains windows above eye level. Its purpose is to admit light, fresh air, or both. Historically, ''clerestory'' denoted an upper level of a Roman basilica or of the nave of a Romanesque or Gothic church, the walls of which rise above the rooflines of the lower aisles and are pierced with windows. Similar structures have been used in transportation vehicles to provide additional lighting, ventilation, or headroom. History Ancient world The technology of the clerestory appears to originate in the temples of ancient Egypt. The term "clerestory" is applicable to Egyptian temples, where the lighting of the hall of columns was obtained over the stone roofs of the adjoining aisles, through gaps left in the vertical slabs of stone. Clerestory appeared in Egypt at least as early as the Amarna period. In the Minoan palaces of Crete such as Knossos, by contrast, lightwel ...
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Louver
A louver (American English) or louvre (British English British English (BrE, en-GB, or BE) is, according to Lexico, Oxford Dictionaries, "English language, English as used in Great Britain, as distinct from that used elsewhere". More narrowly, it can refer specifically to the English language in ...; American and British English spelling differences#-re, -er, see spelling differences) is a window blind or window shutter, shutter with horizontal wikt:slat, slats that are angled to admit light and air, but to keep out rain and direct sunshine. The angle of the slats may be adjustable, usually in blinds and windows, or fixed. History Louvers originated in the Middle Ages as lantern-like constructions in wood that were fitted on top of roof holes in large kitchens to allow ventilation while keeping out rain and snow. They were originally rather crude constructions consisting merely of a barrel. Later they evolved into more elaborate designs made of pottery, taking th ...
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Diocletian Window
Diocletian windows, also called thermal windows, are large semicircular windows characteristic of the enormous public baths (''thermae'') of Ancient Rome. They have been revived on a limited basis by some classical revivalist architects in more modern times. Description Diocletian windows are large segmental arched windows (or other openings), which are usually divided into three lights (window compartments) by two vertical mullions. The central compartment is often wider than the two side lights on either side of it. Names Diocletian windows are named after the windows found in the Baths of Diocletian (AD 302) in Rome. (The Thermae is now the church of Santa Maria degli Angeli e dei Martiri.) The variant name, thermal window, also comes from their association with the Thermae of Diocletian. Influence This type of window was revived and used in Italy in the 16th century, especially by Andrea Palladio. Palladio and others incorporated an elongated Diocletian window in the for ...
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