HOMEJournal of Daylighting
An international journal devoted to investigations of daylighting in buildings. It is the leading journal that publishes original research on all aspects of Energy, buildings, and lighting.
REVIEW ARTICLE
Daylight Enhancement Strategies for Historic Buildings: A Critical Review of
With the growing urgency to reduce carbon emissions in the built environment, enhancing daylight availability in historic buildings has become a critical and challenging task due to the required balance between environmental sustainability objectives and cultural heritage conservation principles.
Journal of Daylighting 13 (2026) 57-75
RESEARCH ARTICLE
Optimizing Window-to-Floor Ratio and Glazing for Daylight and
In tropical climates, where cooling loads dominate building energy use, minimizing cooling demand is particularly critical for achieving carbon neutrality in educational buildings while maintaining adequate daylight and visual comfort.
Journal of Daylighting 13 (2026) 44-56
RESEARCH ARTICLE
Comparative Analysis of Daylight and Visual Quality Across School Plan
Designing daylight-based spaces has gained increasing attention due to its numerous benefits and alignment with global sustainability standards. However, limited research has focused on how architectural layouts affect daylight distribution and visual quality, particularly in educational environments.
Journal of Daylighting 13 (2026) 20-43
RESEARCH ARTICLE
Effects of Urban Obstructions on Spatial Daylight Autonomy (sDA) and
The limited research on obstruction-driven daylight reduction continues to hinder efforts to optimize natural daylight in compact mid-rise residential buildings.
Journal of Daylighting 13 (2026) 1-19
RESEARCH ARTICLE
Integration of light well through generative design to achieve optimal
A case of urban densification in heritage towns like Pondicherry has led to deep-plan wall to wall layouts, where the depth of the plot is considerably more than its width and multi-storey buildings with limited access to day light and natural ventilation.
Journal of Daylighting 12 (2025) 548-560
RESEARCH ARTICLE
Design Optimization of Atrium Skylights for Enhanced Office Building Performance
The increasing demand for energy and the impact of climate change underscore the necessity of energy-efficient building designs. This study optimizes atrium skylights as a passive design solution for Yazd, Iran aiming to enhance thermal and visual comfort.
Journal of Daylighting 12 (2025) 520-547
RESEARCH ARTICLE
Parametric Exploration of Natural Lighting and Visual Comfort in Contemporary
The re-functioning of historical buildings frequently necessitates new additions. This is particularly relevant for historical buildings with open courtyards, where interventions often involve the installation of upper covers using contemporary materials and techniques This issue can become especially apparent in historical buildings that are completely enclosed with transparent materials, raising concerns about the greenhouse effect and its potential to compromise indoor comfort.
Journal of Daylighting 12 (2025) 506-519
RESEARCH ARTICLE
Multi-Criteria Optimization of Tubular Daylighting Devices for Classrooms in
In educational architecture, particularly in high-solar climates, achieving a balance between ample daylight and visual comfort is a significant challenge.
Journal of Daylighting 12 (2025) 491-505
RESEARCH ARTICLE
Multi-objective Optimization of Girih Tile Patterns and Colored Glass
Efficient energy use is vital in architecture, and the building envelope plays a key role in aesthetics, thermal comfort, energy efficiency, and natural lighting.
Journal of Daylighting 12 (2025) 441-467
REVIEW ARTICLE
Human Interaction with Urban Morphology under the Influence of Urban
Outdoor urban spaces are essential to residents’ well-being, yet their thermal comfort is increasingly compromised by urbanization and climate change. .
Journal of Daylighting 12 (2025) 468-490
RESEARCH ARTICLE
Evaluating the Impact of Lighting Conditions on Workers’ Safety and
Lighting is a key element of design that plays a significant role in affecting workers’ health and safety in industrial workspaces. Given the scarcity of scientific studies addressing visual environments in relation to workers health in industrial buildings, this field study was conducted to explore workers' responses to multiple lighting scenarios inside production halls on their occupational health and safety in six factories in Sadat City, Egypt. .
Journal of Daylighting 12 (2025) 420-440
RESEARCH ARTICLE
Evaluating Daylighting Performance of Parametric Mashrabiya in Mediterranean Climate: A
This study examines the daylighting performance of parametric Mashrabiya-inspired shading devices in a Mediterranean climate, aiming to enhance occupant comfort and visual performance.
Journal of Daylighting 12 (2025) 397-419
RESEARCH ARTICLE
Height-Responsive Balcony-Integrated Envelope Design for High-Rise Residential
Balconies function as essential shading elements within the building envelope, playing a critical role in regulating occupant comfort and energy efficiency.
Journal of Daylighting 12 (2025) 375-396
RESEARCH ARTICLE
EEG-Based Neurophysiological Responses to Classroom Window Views in Green
This study examines the neurophysiological responses of students to different classroom window views - forest, park, and city - within energy-efficient, green campus environments.
Journal of Daylighting 12 (2025) 359-374
RESEARCH ARTICLE
Enhancing Year-Round Thermal Comfort with Solar Control Films: A
Windows significantly contribute to thermal discomfort in high solar irradiance climates by allowing excessive heat gains and uneven indoor temperatures.
Journal of Daylighting 12 (2025) 343-358
RESEARCH ARTICLE
Design Alternatives of Light Shelves using Altmann Linkage
This paper proposes a novel new light shelf design with Altmann linkage using its kinetic principles: geometry and rotational angles. As previous studies explain a light shelf’s design in two ways: static and movable, the proposed one in this study has the potential to track the path of the sun due to its diagonal movement. .
Journal of Daylighting 11 (2024) 391-407
RESEARCH ARTICLE
Optimum Geometry of Double-skin Self-Shading Facade of Classrooms
The significant energy consumption in educational spaces worldwide and its environmental impact greatly influence the quality of space, learning levels, and student comfort.
Journal of Daylighting 11 (2024) 372-389
RESEARCH ARTICLE
Parametric Optimization Approach to Evaluate Dynamic Shading Within Double-Skin
This research aims to support the choice of an appropriate dynamic louver shading system (DL-SS) within double-skin facade insulated glazed units (DSF-IGUs) as a high-performance integrated window system (DSF-IGUs/DL-SS) that meets both thermal and energy performance via daylight availability under a tropical climate.
Journal of Daylighting 11 (2024) 349-371
RESEARCH ARTICLE
Artificial Neural Network to Predict Curvature Light Shelf Design Related
Energy Optimization in building design field now has been revolutionized due to AI and machine learning applications. Leveraging daylight to reduce artificial lighting consumption holds promise for significant energy savings, yet the nonlinear nature of daylight patterns poses challenges in prediction and optimization.
Journal of Daylighting 11 (2024) 334-348
RESEARCH ARTICLE
Investigation of the Effect of Parametric Patterned Façade and
Parametric design is one of the thriving contemporary architectural treatments that not only has an influence on the design of building envelopes but is capable of affecting the users physically and psychologically.
Journal of Daylighting 11 (2024) 312-333
RESEARCH ARTICLE
Analyzing Passive Design Retrofits using Pareto Front Optimization to Reduce
Buildings are one of the leading sources of carbon emissions in the world. Most of the carbon emissions are released during the operation phase of the building.
Journal of Daylighting 11 (2024) 290-311
RESEARCH ARTICLE
Tracker-less Sunlight Collection Apparatus, using an Array of Optical
The paper describes an array of optical cones as a potential configuration for tracker-less daylighting, without using an electro-mechanical tracker. Subsequently, a single optical cone is analyzed, mainly in terms of sunlight collection efficiency and acceptance angle, as a function of the cone's geometrical dimensions.
Journal of Daylighting 11 (2024) 279-289
RESEARCH ARTICLE
Analytical Study on Reducing the Heating Effects of Daylight and
Climate change is an environmental issue that is rapidly escalating due to the effects of global warming. The increase in carbon emissions, along with various human activities such as industrial processes, land use changes, and the reckless consumption of natural resources, are among the primary causes of global warming.
Journal of Daylighting 11 (2024) 268-278
RESEARCH ARTICLE
Optimising Daylighting Performance Through Side light with Passive Devise Design
Passive lighting design plays an important role in providing natural lighting to save electricity consumption in buildings. This study aims to investigate the performance of natural lighting and the potential of alternative designs through sidelights with 3 shading device models and light shelves with different sizes in north, west, east, and south orientations.
Journal of Daylighting 11 (2024) 247-267
RESEARCH ARTICLE
Daylight Enhancement Strategies Through Roof for Heritage Buildings
Enhancing daylighting in heritage buildings is a complex challenge that requires a delicate balance between preserving architectural integrity and improving visual comfort.
Journal of Daylighting 11 (2024) 234-246
RESEARCH ARTICLE
Investigation of daylight availability in university dining halls: A case
This study evaluates the availability of daylight inside a university’s dining halls over two days (one sunny and one cloudy) using light meters in real-life sittings. .
Journal of Daylighting 11 (2024) 216-233
RESEARCH ARTICLE
Energy efficiency in smart schools using renewable energy strategy
As smart schools increasingly rely on technology, achieving energy efficiency becomes crucial for cost reduction and sustainability. This study investigates energy efficiency strategies in smart schools, focusing on the integration of renewable energy technologies.
Journal of Daylighting 11 (2024) 203-215
RESEARCH ARTICLE
Synergistic Strategies: Comparing Energy Performance in Climate-Adaptive Building Envelopes
Climate change and improving building energy performance are significant contemporary concerns. Conversely, climate-adaptive building envelopes (CABEs) offer promising solutions to enhance structural performance amidst fluctuating environmental conditions.
Journal of Daylighting 11 (2024) 181-202
RESEARCH ARTICLE
Design Adjustments For Daylighting and Visual Comfort in a Classroom
This paper evaluates how design adjustments applied to roller shades and louvres (namely the height of the shadings head and the angles of the louvre slats) can improve their annual and spatial effectiveness to provide autonomous daylight levels, reduce daylight glare problems, and offer views outside.
Journal of Daylighting 11 (2024) 165-180
RESEARCH ARTICLE
Performance of Shading Against West Glass Facades to Optimise Daylight,
In tropical urban areas, the vertical facades of buildings often play a crucial role in capturing solar radiation and heat, especially for office buildings facing west during the afternoon.
Journal of Daylighting 11 (2024) 131-148
Join our Editorial Board
CVs should be submitted electronically to jd@solarlits.com.
Editorial Board
Dr Valerio Roberto Maria LO VERSO
Politecnico di Torino (Polytechnic University of Turin), Italy
Dr Paola Sansoni
CNR-INO, Italy
Dr Susana Lagüela López
University of Vigo, Spain
Dr Fabio Peron
IUAV University of Venice, Italy
Dr Guiqiang Li
University of Science and Technology of China, China
Prof Francesco Asdrubali
University of Perugia, Italy
Prof Hongfei Zheng
Beijing Institute of Technology, China
Dr Boon Han Lim
Universiti Tunku Abdul Rahman, Malaysia
Prof. Lambros T. Doulos
Hellenic Open University, Greece
Prof. Yuehong Su
University of Nottingham, UK
Prof Laura Bellia
University of Naples Federico II, Italy
Prof. Barbara Szybinska Matusiak
NTNU, Norway
Dr Arsenio Barbón
University of Oviedo, Spain
Dr Canan Kandilli
Usak University, Turkey
Prof. Önder Güler
Istanbul Technical University, Türkiye
Omid Nematollahi
Isfahan University of Technology, South Korea
Dr. Francesco Nocera
Department of Civil Engineering and Architecture, University of Catania (ITALY), Italy
Dr jian yao
Ningbo University, China
Dr Karam M. Al-Obaidi
Sheffield Hallam University, UK
Prof Jitka Mohelnikova
Brno University of Technology, Czech Republic
Dr Hui Lv
Hubei University of Technology, China
Faris Ali Mustafa
Salahaddin University - Erbil, Iraq
Wei Wang
Southeast University, 中国
Dr Marina Bonomolo
University of Palermo, Italia
Alp Tural
Virginia Tech, USA
Dr Doris Abigail Chi Pool
Universidad de las Américas Puebla, Mexico
Dr Petar Pejic
University of Niš, Serbia
Dr Paula M. Esquivias
University of Granada, Spain
Dr. Francesca Fragliasso
University of Naples Federico II, Italy
Dr Hui Shen
Texas A&M University-Kingsville, USA
RESEARCH ARTICLE
Development of Fresnel-based Concentrated Photovoltaic (CPV) System with Uniform
Different designs have been presented to achieve high concentration and uniformity for the concentrated photovoltaic (CPV) system. Most of the designs have issues of low efficiency in terms of irradiance uniformity.
Journal of Daylighting 1 (2014) 2-7
RESEARCH ARTICLE
Daylighting as the Driving Force of the Design Process: from
This paper presents a study for the transformation of an industrial area in Turin, Italy. The area hosts two buildings (one of which appointed as listed) to be transformed into dwellings.
Journal of Daylighting 1 (2014) 36-55
RESEARCH ARTICLE
Comparative Investigation of Daylight Glare Probability (DGP) Comfort Classes in
Glare is considered one of the most important variables to reach visual comfort and visual quality. It represents one of the fundamental barriers for an effective use of daylighting in buildings.
Journal of Daylighting 8 (2021) 284-293
RESEARCH ARTICLE
Outdoor Investigation of High Concentrator Photovoltaic Under Uniform and Non-
This study was performed in outdoor conditions to quantify the level of influence on the electrical performance of the Multi-junction (MJ) solar cells.
Journal of Daylighting 7 (2020) 1-12
RESEARCH ARTICLE
Improvement of Optical Performances Using the Hybrid CPV
Hybrid Concentrated Photovoltaics (HCPVs) are systems in which additional low-cost silicone solar cells are added to take advantage of the power generated by the diffuse radiation lost when using only multi-junction cells that work only with direct radiation.
Journal of Daylighting 7 (2020) 238-245
RESEARCH ARTICLE
Illumination and Lighting Energy Use in an Office Room with
This paper describes a field study of the illumination and lighting energy use in a full-scale test office in a building located in southern Norway. Natural light is provided to the office via southwest-oriented windows and a horizontal light pipe (HLP) with a daylight entrance facing the south.
Journal of Daylighting 9 (2022) 209-227
RESEARCH ARTICLE
Exploring the Impact of Natural Light Exposure on Sleep of
Studies among people with dementia demonstrated that the sleep quality and rhythm improves significantly when people are exposed to ambient bright light.
Journal of Daylighting 5 (2018) 14-20
RESEARCH ARTICLE
The Effects of Orientation and Width of Space Between Buildings
Excessive heat in the high-rise urban fabric has contributed to pedestrian and occupants' discomfort. Establishing wind circulation in space with an environmentally compatible and optimal configuration is necessary to improve comfort in this region.
Journal of Daylighting 10 (2023) 99-116
RESEARCH ARTICLE
Thermographic Mobile Mapping of Urban Environment for Lighting and Energy
The generation of 3D models of buildings has been proved as a useful procedure for multiple applications related to energy, from energy rehabilitation management to design of heating systems, analysis of solar contribution to both heating and lighting of buildings.
Journal of Daylighting 1 (2014) 8-15
RESEARCH ARTICLE
A Novel Approach to Multi-Apertures and Multi-Aspects Ratio
Daylightophil architecture concept is one of the most significant ways to reduce the electrical load consumption in building sector. In deep-plan buildings, or windowless buildings, advanced light transmission systems are used to compensate lighting demands in high-performance architecture theory.
Journal of Daylighting 7 (2020) 186-200
RESEARCH ARTICLE
Application of Micro-structured Sunlighting Systems in Different Climatic Zones
Two-sided micro-structures on windowpanes have been developed for redirecting sunlight into the depth of rooms in order to improve daylighting. In a joint research project comprehensive sunlighting-systems for windows are developed, integrating micro-structures in triple-glass units.
Journal of Daylighting 6 (2019) 52-59
REVIEW ARTICLE
Daylight Transport Systems for Buildings at High Latitudes
This paper is a literature study of daylight transport systems aiming at selecting the most appropriate ones for application at high latitudes. It is limited to the systems that transport light at a long distance from the façade and distribute it either in the building core or at a rear place in a room adjacent to the façade. .
Journal of Daylighting 6 (2019) 60-79
RESEARCH ARTICLE
Improving Daylight Availability in Heritage Buildings: A Case Study of
Refurbished heritage buildings usually lack in meeting the required standards defined for the new function especially when reused as educational buildings.
Journal of Daylighting 8 (2021) 120-133
RESEARCH ARTICLE
Effect of window glazing on colour quality of transmitted daylight
In this study, the colour quality of the daylight transmitted through different window glazing types is evaluated. The analysis considered four different types of window glazing: laminated, monolithic, coated and applied film glazing ranging in luminous transmittance from around 0.
Journal of Daylighting 4 (2017) 37-47
RESEARCH ARTICLE
Optimal Window to Wall Ratio Ranges of Photovoltachromic Windows in
Windows are one of the weakest building components concerning high thermal losses. Traditional windows cannot adapt to external and internal environmental conditions.
Journal of Daylighting 8 (2021) 134-148
RESEARCH ARTICLE
Parametric Analysis of Architectural Elements on Daylight, Visual Comfort, and
The quality of visual comfort has always been an essential element considering human comfort. Providing visual comfort in a living environment reduces the need for artificial lighting, which subsequently has a direct relationship with energy consumptions and its expenses.
Journal of Daylighting 7 (2020) 57-72
RESEARCH ARTICLE
Experimental Investigation of Overall Energy Performance in Algerian Office Building
Building integrated photovoltaic (BIPV) energy has now become one of the most significant renewable energy alternatives for providing natural daylight and clean energy.
Journal of Daylighting 6 (2019) 23-41
RESEARCH ARTICLE
Optical Characteristic Investigation on an Underwater Adjustable Focus Solar Concentrator
This paper presents an underwater adjustable focus solar concentrator, which is composed of a piece of transparent elastic membrane and a hollow cylindrical-like structure.
Journal of Daylighting 6 (2019) 169-175
RESEARCH ARTICLE
Optical Analysis of A Sliding-Type Cylindrical Fresnel Lens Concentrating
Agricultural greenhouses are commonly built around cities to supply residents with agricultural products or green plants. With an increasing demand for plants’ growing environment, the temperature and illumination inside the greenhouses are counted especially during cold winter. .
Journal of Daylighting 8 (2021) 110-119
RESEARCH ARTICLE
A Comprehensive Evaluation of Perforated Façades for Daylighting and
New design tools have enabled architects to explore complex geometries for building envelopes. Perforated Screens (PS) have gained popularity but their design is still intuitive, often focused on aesthetic and morphological criteria.
Journal of Daylighting 6 (2019) 97-111
RESEARCH ARTICLE
Energy Saving Generated Through Automatic Lighting Control Systems According to
The standard EN 15193-1:2017 “Energy performance of buildings - Energy requirements for lighting” introduced a detailed method to calculate the energy demand for lighting in buildings. Th.
Journal of Daylighting 6 (2019) 131-147
RESEARCH ARTICLE
A Combined Method for an Exhaustive Investigation of the Anidolic
Lighting quality in office environments is a broad concept that must be taken into account in the design stage to deliver comfortable spaces to reduce workers' stress.
Journal of Daylighting 8 (2021) 149-164
RESEARCH ARTICLE
A Field-validated Multi-objective Optimization of the Shape and
This study aims to determine the optimum size of windows based on the window-to-floor ratio (WFR) for the main cardinal directions in Hot-summer Mediterranean (Csa) and Dry Summer Continental (Dsa) climates (Köppen–Geiger classification system) by carrying out a multi-objective optimization that relies on three dynamic metrics of Useful Daylight Illuminance (UDI-a (autonomous)), Daylight Autonomy (DA), and Annual Sunlight Exposure (ASE1000,250) in Radiance version 5.1..
Journal of Daylighting 7 (2020) 222-237
RESEARCH ARTICLE
Application of Different Circadian Lighting Metrics in a Health Residence
During the last three decades, various scientific researchers analysed the connection between natural elements and human life, both as far as well-being and productivity.
Journal of Daylighting 7 (2020) 13-24
RESEARCH ARTICLE
Annual Performance Assessment of Complex Fenestration Systems in Sunny Climates
Complex Fenestration Systems (CFS) are advanced daylighting systems that are placed on the upper part of a window to improve the indoor daylight distribution within rooms.
Journal of Daylighting 2 (2015) 32-43