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Topic: Daylighting

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In the News (Sun 18 Aug 19)

  Daylighting - Wikipedia, the free encyclopedia
Daylighting is the practice of placing windows, or other transparent media, and reflective surfaces so that, during the day, natural light provides effective internal illumination.
Energy savings from daylighting are achieved in two ways--either from the reduced use of electric lighting, or from passive solar heating or cooling.
Another important element in creating daylighting is the use of clerestory windows.
en.wikipedia.org /wiki/Daylighting   (759 words)

 Why - Daylighting Collaborative
Daylighting is the most economical and environmentally responsible lighting technique available today.
Daylighting is most challenging in the sunny climates of the south because of the immense amount of illumination from the sky and sun.
Daylighting techniques can be adapted to meet the needs of almost any building, whether it’s a warehouse, school, office, or government building.
www.daylighting.org /why.htm   (1196 words)

 Daylighting Construction Management Daylighting Philadelphia
Once the daylighting enters the room, the surrounding wall, ceiling, and floor surfaces are important light reflectors.
Tilting the ceiling plane toward the daylight source increases the daylight that is reflected from this surface.
It is important that the daylight apertures be accurately modeled and that the materials used to construct the model have the designed reflectance values.
www.aetglobal.com /daylighting.htm   (2097 words)

 NREL Study on Student Performance in Schools with Daylighting
Daylighting allowed for the heating, ventilation, and air conditioning (HVAC) system to be downsized, which in turn reduced the noise levels in both the classrooms and library, thus enhancing the learning environment.
For five daylit schools in North Carolina, authors of the study state that "the cost of the daylighting components have added little to the first-cost of the projects." (7) Therefore, optimizing daylighting in the construction of new schools is an attractive option to potentially improve the performance and health of America's students.
Daylighting will be the main feature of this school, which will incorporate other technologies such as rainwater collection; solar water heating; a windmill for circulating the water in the building; energy- efficient lighting; and thermal pane glass to reduce heat gain.
www.deptplanetearth.com /nrel_student_performance.htm   (3315 words)

Daylighting is the planned use of natural daylight in buildings.
Although in tropical climate, light from the sun which casts strong shadow is associated with a sense of intense radiation and excessive heat, light from the rest of the sky is gentler and is welcome.
In such cases daylight merely contributes to exacerbate the thermal environment and to increase the energy required for air-conditioning.
www.serd.ait.ac.th /ep/mtec/selfstudy/Chapter3/index.html   (269 words)

 Sourcebook: Lighting
Daylighting optimizes natural sunlight entry into a building to minimize the need for artificial lighting.
The primary goal in daylighting is to bring in indirect light (light that is reflected and not in a direct line to the sun).
To accomplish this, overhangs on windows, which are a primary means of daylighting, must be sized to prevent direct light (light that is in direct line to the sun) from entering except, where desired, in the heating season.
www.greenbuilder.com /sourcebook/Lighting.html   (2252 words)

 The Deliberation On Daylighting
Glazing systems, shading systems, daylight harvesting instruments, and devices such as light shelves and solar sensors are all quality approaches that need to be considered in order to distribute the light of day properly; and to ensure that the incoming daylight works with (not against) your other building systems (HVAC, electric lighting, etc.).
Good daylighting allows electric lights to be dimmed or turned completely off during the day (assuming the weather cooperates), when the majority of other facilities have their lights on.
The benefits of daylighting are diluted when employees inadvertently turn lights on or forget to turn lights off when there is adequate daylight (or don’t understand the reason for lights being off).
www.buildings.com /Articles/detail.asp?ArticleID=1827   (2650 words)

 White Paper - Daylighting & Controls
Daylighting is the use of daylight as a primary source of illumination in a space.
Daylighting and Title 24: “The 2005 Title 24 is the first instance of skylights being required by a building code for energy savings,” says Lisa Heschong, Principal of the Heschong Mahone Group.
Daylighting entails the use of daylight as a primary source of illumination.
www.aboutlightingcontrols.org /education/papers/daylighting.shtml   (2715 words)

 High Performance Schools New Jersey
Daylighting is the controlled admission of natural light into a space through windows, skylights and/or roof monitors.
Good and plentiful daylight is an important attribute of any high performance building, and it is especially critical in schools.
Daylight enhances the color and appearance of objects and is therefore the highest quality light source available for visual tasks.
www.daylightingtraining.org   (559 words)

 Pfister Energy - Daylighting - Day Lighting - Active Skylight
Scientifically, “Daylighting” is the use of direct, diffused or reflected sunlight to provide lighting for building interiors.
Daylighting skylight systems use an engineered system of mirrors and reflective surfaces to efficiently light your work area while insulating from heat and protecting from glare.
Daylighting systems use a combination of technology and architecture to transform your building into a visible illustration of energy efficiency, as well as a more comfortable and pleasant visual environment.
www.pfisterenergy.com /daylighting.html   (555 words)

 Capturing the Benefits of Daylighting: Daylight Dividends | LRC
Daylighting reduces the need for electric light by introducing natural light into a building.
The Daylight Dividends program was established to build market demand for daylighting as a means of improving indoor environmental quality; to overcome technological barriers to effectively reap the energy savings of daylight; and to inform and assist state and regional market transformation and resource acquisition program implementation efforts.
Guide for Daylighting Schools - a comprehensive brochure addressing key design considerations for using daylighting in schools.
www.lrc.rpi.edu /programs/daylightDividends/index.asp   (192 words)

 Daylighting Design
Three separate subject areas must be mastered to achieve successful daylighting: (1) the human factors of illumination requirements and visual comfort, (2) coordinating daylighting with artificial lighting, and (3) integrating daylighting with the heating and cooling of the building.
The Note explains that daylighting should have an acceptable range of intensity, it should avoid excess brightness or glare within the visual field, and it should be oriented in the appropriate direction for the illumination required.
Daylighting design is complicated by the fact that most climates require both heating and cooling.
www.energybooks.com /toc/toc1146.htm   (301 words)

In the U.S., research on cost-effective fiber-optic daylight distribution is still in its infancy, though many of the components and technologies, including optical fibers used for electric lighting, are well developed and already finding widespread use for specialized lighting applications.
Last month we addressed daylighting with windows and conventional skylights-strategies that have been shown to boost worker performance in offices, increase test performance in schools, and increase sales in retail establishments.
Used primarily in residential buildings, tubular skylights are devices that channel daylight from an aperture on the roof down through an unheated attic to a ceiling mounted diffuser, which looks much like a conventional ceiling-mounted light fixture.
www.sun-tek.com /Docs/ArticleDaylighting.htm   (814 words)

 NCEF Resource List: Daylighting School Facilities   (Site not responding. Last check: 2007-10-15)
This study investigates whether daylight and other aspects of the indoor environment in elementary school student classrooms have an effect on student learning, as measured by their improvement on standardized math and reading tests over an academic year.
Discusses evidence regarding daylighting and student performance and development, and presents four case studies of schools that have implemented daylighting into their buildings in a cost-effective manner.
Daylighting is infused throughout the school to reinforce the desire for a warm, caring, and cheerful learning environment.
www.edfacilities.org /rl/daylighting.cfm   (9492 words)

 Architectural Record | Continuing Education | Daylighting: Many Designers are Still in the Dark   (Site not responding. Last check: 2007-10-15)
Daylighting, once confined to museums, boutiques and architectural oddities, is, today, an increasingly integral element of contemporary design.
Daylighting and the impact of daylighting strategies on the lighting, heating and cooling of buildings is, perhaps, the most intriguing, and the most vital, construction issue facing building owners and design professionals.
The subject of daylighting became common currency, however, when the Heschong Mahone Group’s now three-year-old study on daylighting and productivity caused such a cultural stir that results were reported by 50 newspapers.
www.vistawall.com /continuinged/daylighting_3.htm   (674 words)

 Lighting Design Lab Articles - Lighting & Productivity - The Importance of Daylighting
Daylighting is a technique in which direct, diffused or reflected daylight is used to provide general or supplemental lighting.
One study (E. Ne'eman, 1974) revealed that daylight was desired (in interior spaces) by 73 percent of interviewed office workers, 91 percent of hospital patients and 93 percent of households.
In a survey (T.A. Marcus, 1967), 86 percent of respondents interviewed indicated a preference for daylight in office spaces, while in a dual study conducted in 1983 (K. Cuttle), some 86 percent of London and 83 percent of New Zealand office workers reported that they preferred daylight.
lightingdesignlab.com /articles/ltg_prod/daylighting.htm   (531 words)

 Daylighting: business: power to save: utilities: departments: City of Fort Collins
Daylighting, combined with energy-efficient electric lighting, can reduce a building's power needs by up to 60 percent without a reduction in lighting levels.
Daylighting strategies have not always lived up to their promise as energy efficiency strategies that enhance occupant comfort and performance.
The effect of daylight on the performance of tasks and on energy savings depends on effective control of how the daylight is delivered.
www.ci.fort-collins.co.us /utilities/powertosave/daylighting.php   (250 words)

Daylighting is already an important method of saving energy in large, open buildings, such as warehouse and factories.
A serious obstacle to daylighting is a lack of effective methods for distributing sunlight throughout the building.
Daylighting must be integrated with control of solar gain, with passive solar heating, with control of artificial lighting, and with the esthetic aspects of architectural design.
www.energybooks.com /toc/toc0803.htm   (287 words)

 WBDG: Daylighting
Daylighting is the controlled admission of natural light into a space through windows to reduce or eliminate electric lighting.
For daylighting large buildings in most climates, consider the use of glass with a moderate-to-low SC and relatively high Visible Transmittance.
A rule-of-thumb is that the depth of daylight penetration is about two and one-half times the distance between the top of a window and the sill.
www.wbdg.org /design/daylighting.php   (2709 words)

Daylighting is the use of natural light, through skylights and windows, to complement or replace interior electric light.
Daylight is available on even the cloudiest day in Vermont.
Daylighted buildings may lease at better rates, have reduced tenant turnover and greater resale value.
www.efficiencyvermont.com /pages/Business/HVAC/Lighting/Daylighting   (313 words)

The word “daylighting” has entered the lexicon to denote natural light used in an interior that, when blended with improved types of flattering, color-balanced artificial illumination, creates environments that consumers enjoy.
Design teams have devised ingenious solutions to replace the uniform sameness of big-box-type lighting with a combination of natural light that is enhanced during the day and artificial illumination that glamorizes the skylight and clerestory openings at night.
For projects where new wings have been added, Gabriel reports that daylight is introduced into 25 percent to 65 percent of the new space.
retailtrafficmag.com /mag/retail_integrating_daylighting   (1441 words)

Now it is architects and developers of commercial buildings who are awakened to daylighting for both design and bottom-line benefits.
Fortunately, interest in daylighting is rising just as glazing technology has the means to overcome the traditional problems of overheating in summer, heat loss in winter and a potential loss of privacy.
New research, such as roof-mounted moveable mirrors that track the sun and shaft more light into a building space, new skylights and light tubes that increase illumination, and advanced coatings that allow windows to automatically shade in direct sunlight are just a few examples of where the industry is heading.
www.sun-tek.com /Docs/Daylighting.htm   (535 words)

 DOE Building Technologies Program: Daylighting   (Site not responding. Last check: 2007-10-15)
High daylight potential is found particularly in those spaces that are predominately daytime occupied.
It is important to establish which spaces will most benefit from daylight and which spaces have little or no need for daylight.
Once the daylight enters the room, the surrounding wall, ceiling, and floor surfaces are important light reflectors.
www.eere.energy.gov /buildings/info/design/integratedbuilding/passivedaylighting.html   (2025 words)

 Daylighting in Schools
The daylighting conditions at the Capistrano school district were the most diverse, and the data from that district were also the most detailed.
And students that had a well-designed skylight in their room, one that diffused the daylight throughout the room and which allowed teachers to control the amount of daylight entering the room, also improved by 19-20% faster than those students without a skylight.
Students in classrooms with the most daylighting were found to have 7% to 18% higher scores than those with the least.
www.solux.net /hmgdaylighting_in_schools.htm   (716 words)

 Michaels - Daylighting   (Site not responding. Last check: 2007-10-15)
As the above rendering demonstrates, a daylighting simulation is a three dimensional model of an interior space.
Daylighting simulation software lags energy modeling software by perhaps a decade in terms of commercially available products.
As a result of this, and the fact that daylighting for energy and occupant performance is quite a new concept, expertise in daylighting simulations is very rare.
www.michaelsengineering.com /Daylighting.htm   (143 words)

 Image Generation: Daylighting and Lighting   (Site not responding. Last check: 2007-10-15)
However, its treatment of daylighting is not very accurate, so we using this program only when not exploring the use of daylighting.
The daytime conference room picture at the right combines daylight with electric lighting from the pendant fixture, two down lights on the far wall and within the credenza enclosure.
Several images on the right of floor plans of a large open office space show increasing usable daylight penetration as window head height increases and finally as an atrium is added.
www.deringergroup.com /consulting/Images/images04.htm   (937 words)

 Lighting Design | Daylighting | Electrical Lighting
This means all measures that influence the input and use of natural daylight, be it the diffuse light off the clear or overcast sky or the directed light of the sun, into built spaces.
Daylighting is influenced by the general structure of a building, the design of facades, windows and skylights, and can be further extended by the use of special devices for redirecting or transporting light.
This is sometimes a misnomer, as it ignores the many cities that are still illuminated by gas lamps.
www.schorsch.com /kbase/glossary/lighting_design.html   (138 words)

 Daylighting & Lighting Design Resources
This is a guide to resources on daylighting or natural lighting in building design, site planning, performance measurement, lighting technology, materials etc. This selected list includes research tools, historical sources, and strategies for finding materials at UC Berkeley and on the Internet.
P G and E- Daylighting Initiative In addition to the daylight models exhibit, the Pacific Energy Center offers several resources on the topic of daylighting including factsheets, books on daylighting.
The Daylighting Initiative program aims to raise awareness of good daylighting practice within the design community and to improve the practice of daylighting design.
www.lib.berkeley.edu /ENVI/Daylighting.html   (1360 words)

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