Lightwell: Difference between revisions
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{{Short description|Air shaft or atrium}} |
{{Short description|Air shaft or atrium}} |
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[[File:Lightwell flickr erix 3704336007.jpg|thumb|Lightwell]] |
[[File:Lightwell flickr erix 3704336007.jpg|thumb|Lightwell]]{{CSS image crop |
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|Image = Aerial Closeup of the Pentagon, May 11, 2021.jpg |
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[[File:Pallasmaa Kamppi.JPG|thumb|[[Kamppi Center]], Helsinki, 2006. The lightwell helps reduce overall energy demands.]] |
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|Align=right|Description=Lightwells in [[the Pentagon]]}} |
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In [[architecture]], a '''lightwell''',<ref group=NB>light well, light-well</ref> '''sky-well''',<ref group=NB>skywell, sky well</ref> or '''air shaft''' is an unroofed 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. |
In [[architecture]], a '''lightwell''',<ref group="NB">light well, light-well</ref> '''sky-well''',<ref group="NB">skywell, sky well</ref> 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.<ref>[https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.506.3983&rep=rep1&type=pdf] Environmental assessment of light well in high-rise apartment building | Hisashi Kotania; ∗, Masaya Narasakia, Ryuji Satob, Toshio Yamanakaa | Department of Architectural Engineering, Graduate School of Engineering, Osaka University, Suita Osaka 565-0871, Japan | Department of Architecture, Osaka Institute of Technology, Osaka, Japan | 17 January 2002| Building and Environment 38 (2003) 283 – 289 | Size of light well (m) 13m × 12m × 62m (height)</ref> |
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Lightwells serve to reduce the necessity for electric lighting, add a central space within the building, and provide an internal open space for windows to give an illusion of having a view outside. |
Lightwells serve to reduce the necessity for electric lighting, add a central space within the building, and provide an internal open space for windows to give an illusion of having a view outside. |
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==Area or areaway== |
==Area or areaway== |
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{{main|Area (architecture)}} |
{{main|Area (architecture)}} |
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A subterranean lightwell by any frontage of a building for light to a basement is also called an '''[[Area (architecture)|area]]''' (or '''areaway''' in North American usage). |
A subterranean lightwell by any frontage of a building for light to a basement is also called an '''[[Area (architecture)|area]]''' (or '''areaway''' in North American usage). This may also allow pedestrian access to the building separate from a main door. |
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==Ancient history== |
==Ancient history== |
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The lightwell was used in ancient civilizations, such as the [[Ancient Egypt|Egyptians]]<ref>{{cite book |title= The demography of Roman Egypt|last= Bagnall|first= Roger S|author2=Frier, Bruce W |date= 2006|publisher= [[Cambridge University Press]]|location= [[Cambridge]], [[New York City|New York]]|isbn= 978-0-521-46123-8|oclc= 28927049}}</ref> and at the Palace of [[Knossos]] on [[Minoan civilization|Minoan]] [[Crete]].<ref>{{cite web |url= http://www.themodernantiquarian.com/site/10854/knossos.html#fieldnotes|title= Knossos|access-date=2008-05-24 |last= Hogan|first= C Michael|date= 2008-04-14|work= The Modern Antiquarian}}</ref> There are also instances of lightwell use by the [[Ancient Roman architecture|Romans]], the [[impluvium]] and [[compluvium]] shaft.<ref>{{cite book |title= Piscinae: Artificial Fishponds in Roman Italy|last= Higginbotham|first= James Arnold|date= 1997|publisher= [[University of North Carolina Press]]|location= [[Chapel Hill, North Carolina|Chapel Hill, NC]]|isbn= 978-0-8078-2329-3|oclc= 35172558}}</ref> In traditional [[Chinese architecture]], the 天井 sky well also |
The lightwell was used in ancient civilizations, such as the [[Ancient Egypt|Egyptians]]<ref>{{cite book |title= The demography of Roman Egypt|last= Bagnall|first= Roger S|author2=Frier, Bruce W |date= 2006|publisher= [[Cambridge University Press]]|location= [[Cambridge]], [[New York City|New York]]|isbn= 978-0-521-46123-8|oclc= 28927049}}</ref> and at the Palace of [[Knossos]] on [[Minoan civilization|Minoan]] [[Crete]].<ref>{{cite web |url= http://www.themodernantiquarian.com/site/10854/knossos.html#fieldnotes|title= Knossos|access-date=2008-05-24 |last= Hogan|first= C Michael|date= 2008-04-14|work= The Modern Antiquarian}}</ref> There are also instances of lightwell use by the [[Ancient Roman architecture|Romans]], such as the [[impluvium]] and [[compluvium]] shaft.<ref>{{cite book |title= Piscinae: Artificial Fishponds in Roman Italy|last= Higginbotham|first= James Arnold|date= 1997|publisher= [[University of North Carolina Press]]|location= [[Chapel Hill, North Carolina|Chapel Hill, NC]]|isbn= 978-0-8078-2329-3|oclc= 35172558}}</ref> In traditional [[Chinese architecture]], the 天井 (sky well) also exists.<ref>{{cite web |last1=You |first1=Xiaoying |title=How ancient 'skywells' are keeping Chinese homes cool |url=https://www.bbc.com/future/article/20230712-how-ancient-skywells-are-keeping-chinese-homes-cool |website=Future Planet |publisher=BBC |access-date=14 July 2023 |date=12 July 2023}}</ref> |
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==See also== |
==See also== |
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*[[Light tube]] |
*[[Light tube]] |
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*[[Ventilation shaft]] |
*[[Ventilation shaft]] |
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*[[Daylighting]] |
*[[Daylighting (architecture)|Daylighting]] |
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==Notes== |
==Notes== |
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[[Category:Solar architecture]] |
[[Category:Solar architecture]] |
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[[Category:Windows]] |
[[Category:Windows]] |
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{{Architecturalelement-stub}} |
{{Architecturalelement-stub}} |
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Latest revision as of 04:51, 26 April 2024
Lightwells in the Pentagon
In architecture, a lightwell,[NB 1] sky-well,[NB 2] 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.[1]
Lightwells serve to reduce the necessity for electric lighting, add a central space within the building, and provide an internal open space for windows to give an illusion of having a view outside.
Area or areaway
[edit]A subterranean lightwell by any frontage of a building for light to a basement is also called an area (or areaway in North American usage). This may also allow pedestrian access to the building separate from a main door.
Ancient history
[edit]The lightwell was used in ancient civilizations, such as the Egyptians[2] and at the Palace of Knossos on Minoan Crete.[3] There are also instances of lightwell use by the Romans, such as the impluvium and compluvium shaft.[4] In traditional Chinese architecture, the 天井 (sky well) also exists.[5]
See also
[edit]
Wikimedia Commons has media related to Lightwells.
Notes
[edit]References
[edit]- ^ [1] Environmental assessment of light well in high-rise apartment building | Hisashi Kotania; ∗, Masaya Narasakia, Ryuji Satob, Toshio Yamanakaa | Department of Architectural Engineering, Graduate School of Engineering, Osaka University, Suita Osaka 565-0871, Japan | Department of Architecture, Osaka Institute of Technology, Osaka, Japan | 17 January 2002| Building and Environment 38 (2003) 283 – 289 | Size of light well (m) 13m × 12m × 62m (height)
- ^ Bagnall, Roger S; Frier, Bruce W (2006). The demography of Roman Egypt. Cambridge, New York: Cambridge University Press. ISBN 978-0-521-46123-8. OCLC 28927049.
- ^ Hogan, C Michael (2008-04-14). "Knossos". The Modern Antiquarian. Retrieved 2008-05-24.
- ^ Higginbotham, James Arnold (1997). Piscinae: Artificial Fishponds in Roman Italy. Chapel Hill, NC: University of North Carolina Press. ISBN 978-0-8078-2329-3. OCLC 35172558.
- ^ You, Xiaoying (12 July 2023). "How ancient 'skywells' are keeping Chinese homes cool". Future Planet. BBC. Retrieved 14 July 2023.
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