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Encyclopedia > Rafter

A rafter is a structural member, a type of beam, which supports the roof of a building. In home construction, rafters are typically made of wood. Exposed rafters are a feature of traditional roof styles. A statically determinate beam, bending under an evenly distributed load. ... A roof tiled in imitation of thatch at Croyde, north Devon, England Rooftops in Vietnam Snow on the roof The roof, the top covering of a building, is one of the universal structures found on all buildings. ... Trunks A tree trunk as found at the Veluwe, The Netherlands Wood is a solid material derived from woody plants, notably trees but also shrubs. ...


In many buildings, rafters have been replaced by engineered trusses (trussed rafters), normally because of span limitations and/or roof load (weight from above). In architecture and structural engineering, a truss is a structure comprising one or more triangular units which are constructed with straight slender members whose ends are connected at joints. ...


Carpenters build rafters to frame the pitch of a roof. Roof pitch is measured as rise over span (a unitless fraction). In the United States slope is given in units of pitch for the ratio of inches (in) rise per 12 in of run or inches of rise per 1 foot (ft) of run. For example, "4:12 pitch" would mean 4 in of rise over 12 in of run and "4 pitch(es)" would mean 4 in of rise over 1 ft of run. In Australia, a roof pitch given in degrees (°) of inclination. Look up Frame in Wiktionary, the free dictionary. ... Roof pitch Relates to the slope and inclination angle of a roof in building construction. ... Span is a section between two intermediate supports of a bridge. ... An inch (plural: inches; symbol or abbreviation: in or, sometimes, ″ - a double prime) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. ... A foot (plural: feet or foot;[1] symbol or abbreviation: ft or, sometimes, ′ – a prime) is a unit of length, in a number of different systems, including English units, Imperial units, and United States customary units. ... A degree (in full, a degree of arc, arc degree, or arcdegree), usually symbolized °, is a measurement of plane angle, representing 1/360 of a full rotation. ... Duquesne Incline, Pittsburgh, Pennsylvania with full length parallel tracks A funicular, also called funicular railway or inclined railway, inclined plane, or in England a cliff railway, consists of a system of transportation in which cables attach to a tram-like vehicle on rails to move it up and down a...


In sports arenas, rafters are used to drape championship banners.


See also


  Results from FactBites:
 
Patrick Rafter - Wikipedia, the free encyclopedia (558 words)
Rafter was well known for his attacking serve and volley game and possessed one of the finest volleys in the game.
Rafter was born in Mount Isa, Queensland and is third-youngest in a family of nine children.
Rafter was on the Australian Davis Cup teams which lost in the final in 2000 (to Spain) and 2001 (to France).
  More results at FactBites »

 
 

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