Tag Archives: daylighting

SunBeamer Skylight System Provides Natural Light Indoors, Promotes Vitamin D Production

SunCentral has announced the release of a new skylight system that claims to promote vitamin D production by providing natural sunlight in interior spaces that would not normally see sunlight. “Our goal was to develop an indoor lighting system that provides much of the sun’s health benefits, including boosting the body’s ability to produce Vitamin…

Light Bandit Brings Daylight to any Room in the House

Light Bandit

For those of us who are deep in the dark of winter, this is a great time to think about bringing sunlight into our homes.  The Light Bandit allows sunlight to be directed fiber-optically to any room in the house – even one with no windows! Like the luminous ceiling we covered back in 2010,…

What Is LEED? – Indoor Environmental Quality

This is the seventh post in a series on the LEED green building rating system. The first post provided an Introduction to LEED, the second looked at the Sustainable Sites credit category, the third at the Location and Transportation credits, the fourth at Water Efficiency, the fifth at the Energy and Atmosphere credits, and the sixth at Materials and Resources.   Indoor…

Skylights Contribute to Energy Savings

Room with skylights by VELUX

Homes that utilize skylights, in combination with vertical windows, to provide adequate levels of daylight tend to be more energy efficient, according to a study commissioned by VELUX America.  Homes with skylights need less vertical windows to achieve the same amount of daylight.  Less vertical windows increase the energy efficiency of a building. “While we have…

Sunflower Corp. Sheds Some Daylight on Its Subjects

Those wanting the best light for interior spaces may want to take a look at Sunflower Corporation and its Sundolier®, a lighting system designed to deliver high quality indirect daylight to large spaces.

Better Daylighting

<p><img src="/files/images/sol.jpg" border="0" alt="Advanced Glazings, Ltd." width="279" height="186" /><strong>solera : </strong>Image Credit: Advanced Glazings, Ltd.Lighting for buildings is a major part of their energy use. Increasingly, green building design is recognizing the importance of providing natural daylight as a means of lighting the building and reducing energy use. Not only does natural daylight reduce the building's energy use, but it also increases comfort for the people in the building. The LEED system includes credit for providing at least 75% of the spaces in the building with natural lighting and views, and the credit is increased if 90% of the spaces are naturally lit.<br /><br />Windows are good for providing views to the exterior. Skylights can be used to bring in more daylight, but they are not without issues. The problem with skylights is that they tend to create glare. The high contrast between areas where the daylight is streaming through the windows and other parts of the space that are not directly lit is visually (and sometimes even literally) uncomfortable. There's either too much light or too little. Diffuse light is more even and comfortable, and avoids areas of deep shadow and sharp glare. This is why so many older buildings had north oriented skylights or clerestory windows (or south-oriented in the southern hemisphere), and why those spaces were so well thought of as artists' spaces and galleries. The <a href="http://www.advancedglazings.com/ldp/index.php">light quality is much better</a> when it is from an indirect source.<br /><br />Most diffuser options do little to spread the light around. Typical etched or frosted glass has little effect. The light patterns are a little bit softer edged from frosted glass than they are from clear glass, but when it is directly lit, it is little better than clear glass. Advanced Glazings, Ltd. offers much better performance for incorporating daylighting into buildings with a line of insulated glazing called <a href="http://www.advancedglazings.com/index.html">Solera</a>. Architects have known of <a href="http://www.kalwall.com/windows.htm">Kalwall</a>, another company that has been making translucent panels for many years. Kalwall is a panel of polyester and fiberglass that offers translucency and some insulation.</p>