| 1. |
- Alenius, Malin, 1971-, et al.
(författare)
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Architectural repertoire and daylight metrics
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- With this article wehighlight the importance of architectural repertoire, methods and tools touncover basic components set by building science in performance-basedregulation. This article elucidates the potential of architecturally groundedmethods when assessing daylight often used in legislation and certificationschemes, by making the daylight factor metric intelligible through geometry. Theempirical material used is five architectural cases from 1917 to 2016. Thesefive cases originate from an exhibition room on daylight presented in relationto architectural composition, historical changes in Swedish building regulationand the 2014 daylight factor building code requirement. The Swedish buildingregulation has, as many other countries, undergone a historical change fromprescriptive-based regulation to performance-based regulation. With regards toregulating daylight this has meant replacing requirements based on geometricalrelationships with abstract building science metrics. Additionally,we review these findings in relation findings from a numerical analysis of 2014daylight factor building code requirement from a larger number of Swedishresidential building stock from the 20th century. This articleargues that architectural research based in drawings and geometricalrelationships and case study material, weather historical or contemporary, canguide practitioners towards a new understanding of building code.
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| 2. |
- Bournas, Iason, et al.
(författare)
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Urban densification affects daylighting: existing daylight levels in Swedish multi-family housing as a base for future daylight requirement
- 2017
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Ingår i: PROCEEDINGS of the INTERNATIONAL CONFERENCE on CHANGING CITIES III : Spatial, Design, Landscape & Socio-economic Dimensions - Spatial, Design, Landscape & Socio-economic Dimensions. - 9786185271121 ; , s. 987-997
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Konferensbidrag (refereegranskat)abstract
- This article presents the results of a study of the Swedish multi-family housing stock in relation to its daylight performance under overcast sky conditions. A total of 8573 rooms in 35 existing buildings were investigated using advanced lighting simulations to determine their point daylight factor, as defined in the current building regulations. The buildings were selected based on their architectural typology and construction era. The results show that, on average, the existing rooms meet the current daylighting requirement (point daylight factor DFp of 1%). The window sky exposure factor was found to affect the DFp significantly. Rooms with a large sky exposure angle that failed to meet the requirement were deep rooms or rooms with a small window-to-floor ratio. The general conclusion is that the current requirement can be considered realistic to ensure an adequate provision of daylight in multi-family dwellings.
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| 3. |
- Alenius, Malin, 1971-, et al.
(författare)
-
Architectural repertoire and daylight metrics
- 2020
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Ingår i: Nordisk arkitekturforskning. - : SINTEF Academic Press. - 1102-5824. ; 32:1, s. 99-126
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Tidskriftsartikel (refereegranskat)abstract
- In this article, we highlight the importance of architectural repertoire, methods and tools to uncover basic components set by building science in performance-based regulation. This article elucidates the potential of architecturally-grounded methods when assessing daylight metrics often used in legislation and certification schemes, by rendering the daylight factor metric intelligible through geometry. The empirical material used comprises five architectural cases from 1917 to 2016. These five cases originate from an exhibition room on daylight presented in relation to architectural composition, historical changes in Swedish building regulation, and the 2014 daylight factor building code requirement. As in many other countries, building regulations in Sweden have undergone a historical change from prescriptive regulation to performance-based regulation. With regards to regulating daylight, this has meant replacing requirements based on geometrical relationships with abstract building science metrics. Additionally, we review these findings in relation to findings from a numerical analysis of 2014 daylight factor building code requirements from a larger number of Swedish residential buildings from the twentieth century. This article argues that architectural research based in drawings and geometrical relationships and case study material, whether historical or contemporary, can guide practitioners towards a new understanding of building code.
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| 4. |
- Alenius, Malin, 1971-
(författare)
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Förändring av rummets och arbetets ljus i tre bibliotek : Stockholms stadsbibliotek 1928, Norrköpings stadsbibliotek 1971 och Helsingfors centrumbibliotek Ode 2018.
- 2022
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Ingår i: Bebyggelsehistorisk tidskrift. - 0349-2834 .- 2002-3812. ; :83, s. 55-78
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Tidskriftsartikel (refereegranskat)abstract
- Changes to the lighting of space and work in three libraries:Stockholm Public Library 1928, Norrköping Public Library 1971, and Helsinki Central Library Oodi 2018SummaryThe article examines how the design of daylight and electric light influences the creation and use of space by studying three specific examples: Stockholm Public Library from 1928; Norrköping Public Library from 1971; and Helsinki Central Library Oodi, which opened in 2018. The research combines an historical analysis with ethnographic field studies to examine lighting design as an integrated, active component of the narrative of the built heritage. The study of the libraries looks at the development of spatial lighting design and work lighting. The key role of reading light in library programmes provides insight into how contemporaneous rules and regulations for lighting were applied in the three examples. The study demonstrates how lighting theory, orientated towards quantitative assessment criteria for work lighting, increasingly prioritised an ideal of vision at the expense of spatial illumination. Yet the study also shows how technological advances have created new spatial possibilities, changing the conditions for previously established lighting practices. Based on the lighting design of the three libraries, the article poses the following questions:How have lighting technology and building design influenced each other, and what are the spatial results?How has lighting theory influenced the design of spatial illumination and work lighting?The three libraries represent three eras of light sources: the incandescent light bulb, fluorescent tube and light-emitting diode (LED), exemplifying how advances in lighting technology have provided increasingly intense, uniform and controllable illumination. Each library exhibits a different approach to the contrast management and flow of light. In the first example, which dates from an era when daylight was still central to the illumination needs of buildings, the lighting design derives from the contrast between light and dark, relating to how visitors moved through the building. In the second example, the lighting design stems from a uniform, more static form of illumination, catering for the needs of central vision. This design emerged at a time when electric light was already predominant. In this form of lighting design, contrast and flow recur, yet in a clearly different way to the two buildings of the previous century.
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