Category: Daylighting

Visual Delight in Architecture

Visual Delight in Architecture by Lisa Heschong (‎Routledge, April 2021, 398 pp.) examines the many ways in which the time we spend indoors is enriched by daylight and window views.

Visual Delight in Architecture by Lisa Heschong (‎Routledge, April 2021, 398 pp.) examines the many ways in which the time we spend indoors is enriched by daylight and window views. The book makes the case that daily exposure to daylight is essential for human health and wellbeing, while describing the subtlety, beauty, and pleasures of well-daylighted spaces and attractive window views.

Click here to check it out at Amazon.

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National Research Council Canada Studies Daylighting

Anca D. Galasiu, National Research Council Canada and C. F. Reinhart, Massachusetts Institute of Technology have co-authored a report, Current Daylighting Design Practice: A Survey, which attempts to create a snapshot of current daylight design practices.

Anca D. Galasiu, National Research Council Canada and C. F. Reinhart, Massachusetts Institute of Technology have co-authored a report, Current Daylighting Design Practice: A Survey, which attempts to create a snapshot of current daylight design practices.

Their goals was to:

(1) understand which daylight performance indicators and design tools are currently used by design practitioners to integrate daylighting in their projects;
(2) identify the additional information needed beyond that available in current design guides; and
(3) advise on the content and format of a new daylighting design guide that addresses these needs.

The responses obtained from 177 participants showed that over 90% of the practitioners surveyed support the development of a new daylighting design guide that would provide online access to both simple calculation methods as well as more advanced daylighting design tools. Survey results also showed that a variety of non-standardized daylight prediction methods – primarily rules of thumb – are currently being used, and that there is no commonly acknowledged method of how to assess the performance and quality of a daylighting system in terms of energy savings, glare prevention, daylight factors, and the view to the outside.

Click here to check it out.

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NBI Releases Guide on Controlling Comfort and Energy in Offices

The New Buildings Institute just released a new market guide, Controlling Comfort and Energy in Offices, which outlines the benefits and best practices to implement lighting and shading retrofits in today’s market.

The New Buildings Institute just released a new market guide, Controlling Comfort and Energy in Offices, which outlines the benefits and best practices to implement lighting and shading retrofits in today’s market.

Authored by Kevin Carbonnier, PhD, Cathy Higgins, and Webly Bowles, AIA, the 12-page guide focuses on:

  • High-quality automated shading: Window treatments, which help counteract direct sunlight, glare, heat, and lack of privacy, are very common in office buildings. They come in many different forms, ranging from traditional manual blinds with strings to automated fabric shades. Today’s automated fabric shades can be pre-programmed to raise and lower according to sunlight patterns. Employees appreciate the benefits without having to spend the time getting shades just right.
  • Modern LED lighting with advanced controls. Innovative office building lighting systems, dominated by LED lighting, can be automated down to the individual fixture. Equipped with advanced wireless controls, individual fixtures will dim or shut off automatically based on conditions around each fixture. Employees, who have become accustomed to adjusting their own lighting while working remotely, can override the system and adjust their assigned fixture to suit their own preferences.

Click here to download it.

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Defining the Daylight Zone

HLB Lighting Design’s daylighting guru Matthew Tanteri wrote a short article defining the daylight zone and how to determine its dimensions within a building.

HLB Lighting Design’s daylighting guru Matthew Tanteri wrote a short article defining the daylight zone and how to determine its dimensions within a building.

Check it out here.

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University of Oregon Publishes White Paper on Light, Views, and the Workplace Experience

The University of Oregon recently published a new white paper, “The Impact of Lighting and Views in the Workplace of the Future.” The paper concludes that daylighted spaces with controlled lighting and views can improve occupant well-being, workplace productivity, and satisfaction by positively influencing various physiological and psychological processes. Lighting and views also impact property value and employee recruitment and retention.

The University of Oregon recently published a new white paper, “The Impact of Lighting and Views in the Workplace of the Future.” The paper concludes that daylighted spaces with controlled lighting and views can improve occupant well-being, workplace productivity, and satisfaction by positively influencing various physiological and psychological processes. Lighting and views also impact property value and employee recruitment and retention.

Light and the visual environment impact nearly every facet of an employee’s life. Lighting directly influences mood and performance during the day and the quality of sleep at night. As new evidence expands the understanding of how specific characteristics of light and views affect human behavior and health, the emergent consensus is that increased access to light, particularly bright daylight, and views during the day can improve productivity and well-being. Occupant interactions with light and views also significantly influence the user experience within the built environment, impacting interrelated physiological and psychological responses.

“In the past, we spent a lot of energy trying to make our lighting systems as uniform as possible. We now know that it matters when, where, and how much light we are exposed to, and the field is working to develop lighting systems that offer more holistic benefits,” says Siobhan Rockcastle, co-author of the white paper and Director of UO’s Baker Lighting Lab. Personal shading and electric lighting control systems can help realize the benefits of daylight and views while significantly improving comfort, satisfaction, and energy performance.

“The demand for daylight, views, and personal controls are continuing to increase in the workplace,” says white paper co-author, Kevin Van Den Wymelenberg, PhD., Director, Institute for Health in the Built Environment. “At the Institute for Health in the Built Environment, we believe that enough is known about the influence of the visual environment on human well-being and performance to recommend action.” The white paper discusses literature indicating the value of daylight indoors to support of healthy circadian rhythms and improve sleep quality. However, the paper cautions against over-generalizing what are currently highly contextual and typically discreet findings.

We now know that it matters. The white paper recommends a measured approach to lighting practice, utilizing natural daylight where possible and electric lighting, patterned on the cycles of the natural environment, that reinforces the body’s natural rhythms. This approach should be dynamic. Studies show occupant preferences vary drastically in different contexts and the ability to respond to these changes is a key predictor of user satisfaction. Furthermore, lighting should not be evaluated only with respect to visual-task performance. The experiential qualities of daylight, as well as the natural connections fostered by views, have the potential to significantly improve aspects of health and mood.

Click here to read the whitepaper, which was sponsored by Lutron Electronics.

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DOE Announces 2019-20 Solar Decathlon

The U.S. Department of Energy Solar Decathlon has issued a call for applications for the 2019-2020 Design Challenge.

The U.S. Department of Energy Solar Decathlon has issued a call for applications for the 2019-2020 Design Challenge, planned for April 17-19, 2020.

The Decathlon is a collegiate competition, comprising 10 contests, that challenges student teams to design and build highly efficient and innovative buildings powered by renewable energy.

Key dates:

  • November 5, 2019 – All Design Challenge participating teams must complete the team application.
  • September 2019 to March 2020 – Webinars and building science trainings are offered.
  • April 17-19, 2020 – Finalist teams complete their project submissions and compete with presentations to industry leaders.

Click here to learn more.

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Daylighting Begins Outside

It sounds obvious, but it isn’t. The fact is daylighting designs often assume a uniform “white canvas” of exterior daylight to work with, when numerous factors affect daylight availability. This is the subject of an insightful short article by HLB daylighting experts Matthew Tanteri and Amaia Puras-Ustarroz.

It sounds obvious, but it isn’t. The fact is daylighting designs often assume a uniform “white canvas” of exterior daylight to work with, although numerous factors affect daylight availability. This is the subject of an insightful short article by HLB daylighting experts Matthew Tanteri and Amaia Puras-Ustarroz.

Check it out here.

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IES Publishes Design Guide on Active Core Sunlighting for Buildings

The Illuminating Engineering Society has published DG-31-18, Design Guide on Active Core Sunlighting for Buildings, which provides an introduction to active core sunlighting systems and their implementation in buildings.

The Illuminating Engineering Society has published DG-31-18, Design Guide on Active Core Sunlighting for Buildings, which provides an introduction to active core sunlighting systems and their implementation in buildings. An emerging field, active core sunlighting is the practice of harnessing sunlight to illuminate the majority of areas in a building during the daytime.

Click here to order a copy.

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NLB Video Discusses Importance of Daylighting

Daylighting can have such a powerful effect on office workers’ comfort, well-being, and productivity, the buildings they occupy are now being oriented and designed to bring as much daylight as…

Daylighting can have such a powerful effect on office workers’ comfort, well-being, and productivity, the buildings they occupy are now being oriented and designed to bring as much daylight as possible into occupied spaces. So say three experts on the topic, impaneled at the National Lighting Bureau’s Annual Lighting Forum. Moderated by EdisonReport Editor and Publisher Randy Reid, the panel comprised Sara Lappano, P.E., LC, LEED AP (SmithGroupJJR); Brent Protzman, Ph.D., LC (Lutron Electronics); and Seth Warren Rose (Eneref Institute).

Underscoring the impact of effective daylighting, Rose recounted a story about five libraries in Berkeley, California. The least-used library provided low-quality daylighting to the facility’s occupants. Once the building was renovated, with extensive focus on its daylighting characteristics, the library became Berkeley’s most popular.

Lappano noted that developing effective daylighting design is not simple. It requires a team approach involving the architect, lighting designer, electrical engineer, and – for purposes of energy-use modeling – the mechanical engineer. As Protzman noted, however, the team needs to develop a solution at the outset, and all team members need to focus on making it happen. In that respect, Lappano commented that team members must realize that more daylighting is not necessarily better daylighting, given that too much daylighting can have a negative impact on energy consumption and overall lighting quality.

As one outcome of the new emphasis on daylighting, Lappano said new buildings tend to be “slimmer” than their older counterparts, allowing almost all occupants to have a view out the window, giving almost all workers some of the benefit of a “corner office.” While this approach costs more to build on a per-square-foot basis, Protzman noted that those who intend to purchase or rent space find that the benefits of better daylighting justify higher prices for space acquisition.

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CLTC’s Advanced Daylighting Lab Gets a Facelift

As part of current research sponsored by Southern California Edison, the California Lighting Technology Center (CLTC) is updating its Advanced Daylighting Lab to include dynamic fenestration and integration of electric…

cltcAs part of current research sponsored by Southern California Edison, the California Lighting Technology Center (CLTC) is updating its Advanced Daylighting Lab to include dynamic fenestration and integration of electric lighting and HVAC systems.

Activities are being conducted in collaboration with ready-to-integrate manufacturing partners so that new systems can more quickly and effectively transition to the commercial market.

More information on current research efforts with SCE can be found here.

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