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- 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. |
- Alenius, Malin, 1971-, et al.
(författare)
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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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| 3. |
- 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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| 4. |
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| 5. |
- Dahlberg, Johan, et al.
(författare)
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Solenergi i stadsbyggnadsskalan
- 2014
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Ingår i: Plan. - 0032-0560. ; 6, s. 18-22
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 8. |
- Lundgren, Marja, 1971-, et al.
(författare)
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Daylight autonomy and facade design : From research to practice for the Stockholm SEB Bank head office
- 2014
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Ingår i: Advanced Building Skins Conference Proceedings of the 9th ENERGY FORUM 28 - 29 October 2014, Bressanone, Italy. - Munich : EF ECONOMIC FORUM.
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Konferensbidrag (refereegranskat)abstract
- Glazing-to-wall area ratio (GWAR) is one of the key parameters determining energy use in office buildings. Excessive fenestration areas not only yield significantly higher energy use, they are often associated with glare problems yielding a wasteful solution, where blinds are down while electric lighting is on. Future near-zero energy office buildings will have a reasonable GWAR to optimize the balance between good daylighting and low heating and cooling loads while providing a satisfying work environment with good view out. Starting from this evidence-based knowledge, White arkitekter developed innovative building facades for the SEB Bank headquarters in Stockholm, using advanced parametric modelling, where glazingto-wall ratios were optimized as a function of orientation. Other aspects of the design included: 1) adaptation of building functions in relation to orientation to avoid glare, 2) use of self-shading principles adapted to orientation, 3) increase of the window-head-height to maximize daylight penetration, 4) tri-dimensional angulation of facade elements allowing diffuse indirect daylight reflections and intermediate light transitions, 5) modulation of GWAR according to floor level. This paper presents the innovative architectural design proposal and discusses the process used to translate the evidence-based knowledge into an innovative building design using parametric modelling supported by advanced simulation and modelling tools.
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| 9. |
- Lundgren, Marja
(författare)
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Energy and architectural consequences of Swedish building code
- 2016
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Ingår i: Smart and Sustainable Built Environment. - : Emerald. - 2046-6099 .- 2046-6102. ; 5:2, s. 125-142
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this paper is to propose building code changes that would benefit both architectural design and the potential of achieving nearly zero energy goals by analyzing the architectural implications of the energy system boundaries within the Swedish code.Design/methodology/approach: The analysis is driven by three questions that relate the national implementation of EU directive on nearly zero energy 2020 to the premises set out in the guidelines for revising the Swedish building code aiming at a performance-based regulation. A crucial part of the research is a comparative analysis of the design implications of the code to research findings in scientific articles on near-zero energy or low-energy design.Findings: The energy system boundaries in the Swedish code are steering the architectural design and energy consequences of offices towards using less heat but more electricity. The energy section is also limiting the architectural design choices by ignoring the positive energy aspects of daylight. A proposal of a new comprehensive energy section taking all architectural design related energy aspects into account is presented, in order to support design of nearly zero energy buildings.Practical implications: A building code that relates the energy system boundaries to form will help integrated design choices that are more likely to support the strive towards nearly zero energy buildings.Originality/value: The paper reveals the design implication of the Swedish energy section to be counterproductive regarding energy efficiency as well as limiting architectural design choices.
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