Daylighting buildings: Standards and the needs of the designer

Tregenza, P.R.; Mardaljevic, John

doi:10.1177/1477153517740611

Cited by 51 publications

(28 citation statements)

References 20 publications

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“…Further studies are needed to investigate bather's sensorial experiences of heritage hammams daylighting ambiences to understand elements of comfort that are outside the norms of numerical quantification of light. As argued by Tregenza and Marjaldevic [19] in their review of half a century of research on daylighting, there are still important questions which fifty years of study have not fully answered: What are the criteria of good daylighting? What should be the central aim of the designer?…”

Section: Discussionmentioning

confidence: 99%

Let There Be Light! Investigating Vernacular Daylighting in Moroccan Heritage Hammams for Rehabilitation, Benchmarking and Energy Saving

Sibley

2018

Sustainability

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This paper provides the first study of vernacular daylighting provision in Moroccan heritage public bathhouses in order to rehabilitate it for experiential authenticity, energy saving and improved users’ well-being. The analysis of a representative sample of 13 still working hammams reveals recurrent patterns of oculi numbers and configurations. These consist of one to three rows of eight circular roof openings (oculi) of 18 to 20 cm diameter, arranged along the roof vault of each bathing space. The ratio of total roof openings’ area to internal floor area rarely exceeds 2%. Synchronised measurements of horizontal illuminance on the roof and inside the bathing spaces in a case study hammam were conducted in July and August 2016, after rehabilitating all roof oculi. Recorded levels indicated that maximum horizontal illuminance never exceeds 60 lx. The calculation and plotting of daylight factor based on real data reveal levels under 2% and a sudden decline in the hot room early afternoon due to steam accumulation. The paper provides the first benchmark of vernacular daylight rehabilitation in Moroccan heritage hammams and the illuminance it affords. It introduces an innovative combination of historical, architectural and building science methodologies that can be extended to other heritage building types.

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Section: Discussionmentioning

confidence: 99%

Let There Be Light! Investigating Vernacular Daylighting in Moroccan Heritage Hammams for Rehabilitation, Benchmarking and Energy Saving

Sibley

2018

Sustainability

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“…Since its introduction in 1895, DF has long been used to determine daylighting performance [49]. However, due to the problem of climate and orientation, it is currently not used frequently [50], and instead the annual hourly mean illuminance (A.MHI) metric is more used nowadays. A.MHI is a dynamic metric, simply expressed as the average value of the total illuminance entering the interior of the building [27,30].…”

Section: Correlation Analysis Between Df and Amhimentioning

confidence: 99%

Impact of Building Design Parameters on Daylighting Metrics Using an Analysis, Prediction, and Optimization Approach Based on Statistical Learning Technique

2019

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Daylighting metrics are used to predict the daylight availability within a building and assess the performance of a fenestration solution. In this process, building design parameters are inseparable from these metrics; therefore, we need to know which parameters are truly important and how they impact performance. The purpose of this study is to explore the relationship between building design attributes and existing daylighting metrics based on a new methodology we are proposing. This methodology involves statistical learning. It is an emerging methodology that helps us to analyze a large quantity of output data and the impact of a large number of design variables. In particular, we can use these statistical methodologies to analyze which features are important, which ones are not, and the type of relationships they have. Using these techniques, statistical models may be created to predict daylighting metric values for different building types and design solutions. In this article we will outline how this methodology works, and analyze the building design features that have the strongest impact on daylighting performance.

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“…It measures how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception [44]. It is the most extensively acceptable and simplest daylight metric which has been used by regulations and standards [45]. Illuminance has been defined as "the ratio of the luminous flux, incident on an infinitesimal surface in the neighborhood of the points, to the area of surface" [46].…”

Section: Daylight Illuminancementioning

confidence: 99%

Impact of Building Typology on Daylight Optimization Using Building Information Modeling: Apartments in Erbil City as a Case Study

Majeed

Mustafa

Husein

2019

Journal of Daylighting

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Daylight represents one of the crucial factors that affect directly on the building performance and its occupants. This study assesses the daylight performance in the multi-storey residential buildings (apartments) in Erbil city. It aims to find out the impact of building typology on daylighting quality and quantity. The endeavour of this research is to determine the optimal plan typology in providing sufficient daylight levels. A simulation method has been used with an academic licensed Revit Architecture 2019 with plugged insight daylight analysis as one of Building Information Modeling (BIM) tools for achieving this goal. Five multi-storey residential buildings were selected as cases of study. Three types of simulation were run on each project: Illuminance, LEED, and Daylight Autonomy to achieve results. The results were analyzed and compared with daylight standards levels. The results demonstrated that the point typology is the best type of plans among all cases in terms of providing optimal daylight performance, while the double-loaded plan typology was the worst. The study concluded that the plan typology has an obvious impact on achieving daylight performance in the multi-storey residential buildings. The current research can contribute to identifying the shortcomings of daylight levels in buildings seeking to overcome it in the early phases of design.

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Daylighting buildings: Standards and the needs of the designer

Cited by 51 publications

References 20 publications

Let There Be Light! Investigating Vernacular Daylighting in Moroccan Heritage Hammams for Rehabilitation, Benchmarking and Energy Saving

Let There Be Light! Investigating Vernacular Daylighting in Moroccan Heritage Hammams for Rehabilitation, Benchmarking and Energy Saving

Impact of Building Design Parameters on Daylighting Metrics Using an Analysis, Prediction, and Optimization Approach Based on Statistical Learning Technique

Impact of Building Typology on Daylight Optimization Using Building Information Modeling: Apartments in Erbil City as a Case Study

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