follow us on:

      follow GPI Design on Google Plus  follow GPI Design on Pinterest

Beneath the Surface Blog


GPI TWeekly Archive: Glass Walls

GPI Design - Friday, February 10, 2012

This week, the GPI Design team is working with fluted glass panels for a custom backsplash project (you can see the picture HERE). So we paid special attention to glass panel designs shared on Twitter. We are particularly pleased to see the following clear glass walls applied in these extraordinary buildings.  As always, enjoy and let us know your thoughts!

Panorama House Design: Glass Walls & Modern Interiors   "This breathtaking glass home, which was once a brick cottage, definitely has multiple WOW factors!" tweet via @DreamwallsGlass

Pin It

Vanke Triple V Gallery tweet via @ARCILOOK

Pin It

"Cube Court House by Shinichi Ogawa and Associates on@designmilk #design #architecture" tweet via @HRKzen

Pin It

Valentine's Day is coming up next week. This heart installation in the middle of Time Square tells it all. It's illuminated by transparent LED acrylic tubes.

"❤ Giant Beating Heart In New York City Celebrates Love ❤" tweet via @StoneSculptorJN

Pin It

On Valentine's Day, we are going to publish a video of a custom backlit onyx table that the GPI team just completed! It breaks our hearts that it's leaving the office soon.  Get excited and come back to Beneath the Surface next Tuesday!


TWeekly Archive is GPI Design's new blog column that updates every Friday to feature innovative and inspiring architecture, interior, and lighting designs that are shared through Twitter within the week. We always appreciate tweeps who constantly refresh our minds by sharing great articles, pictures, and videos. If you have something that you feel like sharing and want it featured on our blog, leave a link in the comment or simply @gpidesign on Twitter. We are always hungry for cool designs!

Delicate Horror in Glass Creations

GPI Design - Monday, October 31, 2011

Stained Glass Spider Web

Happy Halloween! In a playful celebration of the holiday, our designers wanted to share this inspiration: Kyle Schumacher’s Stained Glass Spider Web. Mixing bold graphic lines and delicate glass textures, Kyle’s mostly colorless glass creations fluctuate with the views or spaces placed behind them. Allowing light and color to peek through, these pieces remain appropriately seasonal without boasting giant toothy pumpkin faces.

Photo credit: Kyle Schumacher via Etsy

Glimpses of Our Process: Backlit Glass Floor Development

GPI Design - Tuesday, October 25, 2011

We're working on illuminating a commercial lobby floor for a project in Perth, Australia.  To firm up our strategies, the specified glass panels were shipped to us so we could study their relationship to our backlighting. Creating even illumination for this highly translucent glass surface in a load bearing floor application presented a fun challenge for our team. Photographer and videographer Andrew Thames spent a few days with us capturing the process.

Take a look at how we arrived at the final design - you'll see hot spots and any distracting evidence of the light source slowly disappear.

Thursday Salute to Originals: Music With a Crystal Clear Sound

GPI Design - Thursday, June 23, 2011

Glass Percussion Project Suspended Instruments

Few who nonchalantly trace their finger over a wine goblet's rim realize the truly amazing acoustic potential of glass. While glass instruments can usually seen as the stuff of weddings and talent shows, few realize the innovation and artistry that go into the construction and playing of acoustic glass implements, utilizing techniques that often go back centuries. The Glass Percussion Project, headed by glass/installation artist Elaine Miles and percussionist/composure Eugene Ughetti, has changed perceptions of art and sound, fusing the beauty of installed pieces with the artistry of performance music.


Elaine Miles had been working as a glass artist for years before being inspired by street performers to explore the acoustic properties of her work. It took a percussion performance by Eugene Ughetti on the radio for the two to meet. In Ughetti, Miles found a collaborator who could realize the full potential belonging to her hundreds of glass pieces. The instruments range from tiny glass spheres and pipes, to glass bells and xylophones, to large glass panels and jugs. Each is hand-blown by Miles and her team and only later judged by Ughetti for its properties of pitch and timbre. Sometimes certain "sounds" are missing from repertoire and Miles must work to make another, an interesting action by glass blowers who usually concentrate only on the visual and structural properties of their work. Performing in museums, performance halls, and public spaces, these Australian based artists together produce mesmerizing, often haunting melodies that aim to recall the beauty and wonder of the world which surrounds.

Image credits: TheAge.com.au, Ozarts.com.au

Thursday Salute to Originals: Illuminated Excellence Where None Have Previously Dared Tread

GPI Design - Thursday, June 16, 2011

Few artists today can rival Dale Chihuly in inspiration, innovation, influence, ambition, and breadth. Hailing from Tacoma, Washington, Mr. Chihuly's introduction to glass blowing occurred during his B.A. in interior design. While as a weaving student, he began to incorporate metal and glass strands into the weaving of tapestries, eventually turning to glass blowing a year later. This experienced kindled a love for artistic glass, leading him to a Fullbright Fellowship in Venice, Master's Degrees in Sculpture and Fine Arts, and the founding of both the Pilchuck Glass School and the glass program at the prestigious Rhode Island School of Design.

Like many artistic disciplines, an imposition of limitation allowed Mr. Chihuly to perceive in ways not previously imagined. A body surfing accident in 1979 dislocated his shoulder, severely hampering his ability to blow glass. By the necessity of incorporating others to perform the glass blowing, Chihuly noted the increase of perspective he gained, stating, "Once I stepped back, I liked the view." His styles and interests change and evolve much like the natural and human worlds from which he draws inspiration. Instead of making his art in a heavy-handed fashion, Mr. Chihuly prefers to follow cues from the hot glass, bequeathing an organic quality unavailable by utilizing byzantine techniques. His continued changing expressions vary from the permanent to temporary, gigantic to small, incorporating both glasses and other materials, in both nature and cities, museums and buildings.

 Dale Chihuly Glass Art Sculpture at Atlantis Hotel in Dubai

Above image: Chihuly Sculpture at Atlantis Hotel in Dubai

While teaching at Pilchuck, Chihuly held numerous outdoor exhibits including one where he blew hot glass bubbles and then set them floating on a nearby pond. When the water eventually evaporated weeks later, the bubbles disappeared as well. Not unfamiliar with social commentary, Chihuly once showed an exhibit in Jerusalem where he arranged huge blocks of Alaskan ice like a fortified wall, placing lights with colored gels behind. The melting, illuminated ice signified the beauty of breaking down human walls and the temporary nature of our animosities.

Dale Chihuly Fioro Di Cuomo Glass Light Sculpture

Above: Fiori Di Como at the Bellagio in Las Vegas by Dale Chihuly (Image credit: Catherinesherman Wordpress)

His sculptures, instillations, towers, and chandeliers have been incorporated in public and commercial buildings for decades. He revisited his interior design roots in the late 80s and began incorporating his works into architecture. The Las Vegas Bellagio treats patrons to the Fiori Di Como, a flowing collection of 2,000 hand-blown glass pieces that hang six meters above the floor. The thirty foot tall V&A Chandelier has been hanging in the main entrance of the Victoria and Albert Museum since 2000. To commemorate the University of Akron's Goodyear School of Polymers, Chihuly placed a forty foot sculpture made of 80 weather-proof and illuminated blue, polymer "rocks" on a nautilus-shaped base in front the building. This indicated how the amazing advancement of science and design mimics that already accomplished by nature.

Above: Dale Chihuly Sculpture at Goodyear School of Polymers in Akron, Ohio (Image credit: University of Akron)

Chihuly has been featured in over two hundred museums and has had exhibits throughout the world, including a solo exhibit at the Louvre. Many states in America and several other countries house permanent collections of his. A documentary featuring his Chihuly Over Venice demonstration was the first Hi-Def broadcast in the United States. Reaffirming his connection with nature, he has installed numerous towers, pieces, and chandeliers in botanical gardens, incorporating and accenting the look of the natural world.

Above left: Saffron Tower at DeYoung Museum in San Francisco

Above right: Persian Pond at Garfield Park in Chicago

Truly an American master, Dale Chihuly influences the world as much as it influences him. Where previously, glass was considered a craft more than an art, Chihuly has redefined concepts and elevated this neglected discipline. His continued progression and re-examination of styles indicates an artist devotion to expression and innovation. We are all richer for his art.


Backlighting Translucent Glass Panels: Don't Forget Diffusion Techniques

GPI Design - Wednesday, January 19, 2011

Thinking of designing a backlit glass bar or countertop? It's not quite as easy as just placing a light source behind the glass.  There are many details that can slip through the cracks in backlit architectural features, and when the lighting system is sloppy, the time and investment that you’ve put into the surface is rendered useless.

Particularly when the glass panels and the backlighting system are provided by two different companies, it is often unclear who is responsible for these seemingly secondary items (attachment methods, diffusers, accountability for the final look).  But it's really those details that make your backlit feature sink or swim. The most overlooked item when backlighting glass panels is diffusion. It’s one of those items that often slides through the design and construction process unnoticed.  

A few important tests can ensure that your backlit glass designs perform to your expectations. We’ll use this recent project as an example: the designer wanted to seamlessly illuminate vivid blue glass panels from Jockimo. The glass specifications, color, and patterning were already set. The Jockimo glass sample was sent to our Design Lab here at GPI to determine the best illumination and diffusion strategy. Based on the custom LED light panel design (LED panel sizes, color temperature, spacing between LED bulbs), GPI was able to quickly generate a light diffusion strategy that complemented both the glass panels and the construction assembly.

  • When placed in direct contact with the LED light panel as shown below, the hot spots (bright edges) were quite visible. (Distracting, muddled look - doesn't do justice to the beauty of the glass.)

  • Backlit Glass Sample Directly on LED Panel
    Backlit Glass Assembly Before Diffusion: Hot Spots at Edges, Cold Spots at Center

  • As time was of the essence, we didn’t want to increase lead time by altering the glass panel specifications with the addition of interlayers or frosted treatments. (Cross those methods off the list.)
  • To keep the countertop assembly as simple as possible without adding thickness, the glass surface needed to rest directly on top of the LED light panel. That meant that we couldn’t rely on the air space cavity for diffusion. (Cross that method off the list.)
  • We tested optical acrylic diffusing panels, but even with a slim 3/16” gauge, the added thickness was not desired. (Acrylic diffusion panels won’t work here, scratch that.)
  • The outcome: a specialty diffusion film was applied directly to the face of the LED panels. The corrective film blends the light and even brightens up the saturated blue colors. We applied the film using varying pressures that balance the LED panel lighting into a truly seamless plane of light.  The LED light panels were shipped with the film applied, ready for easy on-site construction by the installation team.

Evenly Illuminated Backlit Glass Sample With Diffusion Film
Backlit Glass Assembly After Diffusion Film: Continuous Plane of Light, Saturated Glass Coloration

VOILA! The custom solution for evenly illuminated glass countertops– with our integrated methods, a few simple testing iterations allowed us to preserve the designer's vision.

Stay tuned for final installation photographs!

Backlit Glass Panels Form A Glowing Feature Wall in Lancaster: A Brief Case Study

GPI Design - Monday, November 15, 2010

Bringing together fine art photographs of natural grasses, custom bent glass, and LED backlighting can be difficult – throw in a curved shape with a narrow lighting cavity and the stage was set for this example of custom integration at the lobby of Lancaster General Health Women and Babies Hospital.

Architects Noelker and Hull wanted to bring soothing natural elements to the entrance lobby of this hospital in Lancaster, PA. Artist Henry Domke’s fine art images were commissioned, and Skyline Design fabricated the prints onto bent glass panels. The designers knew they wanted to showcase these artistic glass panels with seamless backlighting.  

1. Design Intent

Rendering of initial design concept for the space

Lancaster Lobby Architect's Rendering

2. Surface

Skyline Design printed Henry Domke's specified image onto optically clear film, which was then applied to the back side of Skyline's bent glass panels.

3. Lighting

GPI analyzed the printed glass surface to calibrate the ideal diffusing method and lighting cavity.

Below left: glass in direct contact with LED panel, without diffusers

Below right: specialty diffuser between glass and LED panel plus small air cavity to increase light diffusion

Backlit Glass Panels Both With and Without Diffusion Method

4. Structure

Section detail showing the overall assembly - glass was run in channels on the floor and ceiling

Lancaster Wall Section of Backlit Glass Panels

5. Detailing

All wire exits were detailed in a staggered arrangement to avoid extensive gaps between panels.

Shop Drawing of LED Panels and Wire Exits

6. The Result

Seamlessly illuminated dramatic glass feature wall

Lancaster Illuminated Glass Feature Wall

---> Here’s what we learned from working through this project. Keep these tips in mind when designing illuminated glass feature walls:

  • Make sure that your glass supplier and lighting supplier maintain direct communication so that each company can calibrate their product based on the given set of parameters.
  • Don’t skimp on physical mock-ups. Because flat LED panels emit varying brightness based on the panel sizes, each job must be analyzed individually in order to determine the ideal LED panel size, lighting cavity and proper diffusers.
  • Seams between flat LED panels are the most susceptible area.  Hot spots can occur when two LED strings are placed back-to-back. Seams can also create shadows if wire exits create large gaps that push the panels apart.
  • Printed glass can be highly translucent, with great risk of hot and cold spots appearing on the surface (regardless of what type of lighting you use). Check with your glass manufacturer to see if they can treat the back surface of the glass with texture or diffusion layers – or make sure your lighting manufacturer can provide the appropriate diffusing panels.

See the final project images >

Top 3 Tips for Designing with Backlit Glass Panels

GPI Design - Monday, October 25, 2010

Designing with translucent surfaces, structure, and backlighting is a delicate balance– those are three difficult materials to make work together. There are several methods to illuminate glass surfaces with backlighting, and chances are if you're creating a ceiling or wall, then you have little space in which to throw the light. Because glass is a substantially heavy material, throwing cumbersome structural members into the mix further complicates things.

Here's a video example of a prototype that GPI developed for a backlit glass ceiling project. The assembly includes metal standoff hardware, recycled glass panels, colored LED panels, and lighting controls – all customized and calibrated to complement each other, for a seamlessly blended illuminated finish.


Here are our top 3 tips for designing with backlit glass panels:

1. Don't disregard structure. Move the flat LED panels in front of all structural pieces in order to avoid casting shadows.  Glass is often used in conjunction with standoffs or steel angles.  Ensure that the lighting elements can be implemented into your chosen method.

2. All types of glass have different diffusion characteristics. Be sure that your lighting manufacturer can make proper modifications to the lighting fixtures to properly illuminate your chosen glass, or consult a lighting designer that is well-versed in methods to eliminate halos, hot spots, and cold spots. Create a custom mock-up or consult an expert to discuss the optimal dimension between LED panel and glass surface for best light diffusion.

3. Consider specifying a clear or white glass and use the lighting to provide the color. That way, your client can dial in the exact color desired and use different settings for special occasions.

Still struggling? Send us your sketches for design consultation.

GPI Project in Progress: Backlit Glass Panels at AED Idea Center

GPI Design - Wednesday, June 02, 2010

Project Update: LED Light Panels at AED Idea Center Installed, Glass Panels Evenly Backlit

LED Backlit Glass Panels at Columns
Backlit Glass Columns by GPI | AED Idea Center | Washington, D.C.

Architect: Studio 27 Architecture

Lighting Designer: MCLA

Application: Backlit frosted glass at eight columns

Products: GPI Infuse™ Flat-Lite™ LED Panels at 3500K lighting temperature

Integration: Diffuser films to hide lamp image and disguise hot spots, GPI Infuse™ Custom Power/Dimming Packs that communicate with Lutron 5000 Graphic Eye to balance brightness between large and small panels

This is a rough progress image from the field.  Check back for completed photographs when the dimming interface is completed!

(Blog Update 1/16/11: see the completed photographs)

Project in Progress: Backlit Glass Panels at AED Idea Center

GPI Design - Tuesday, June 01, 2010

Project Update: LED Panels Wired and Installed, Glass is Evenly Backlit


Backlit Glass Columns by GPI | AED Idea Center | Washington, D.C.

Architect: Studio 27 Architecture

Lighting Designer: MCLA

Application: Backlit frosted glass at eight columns

Products: Frosted glass panels, GPI LED Panels at 3500 K, GPI Custom Dimming Packs that communicate with Lutron 5000 Graphic Eye

Integration: Diffuser films to hide lamp image and disguise hot spots, GPI Dimming Packs to balance brightness between large and small panels

Above image indicates construction progress from the field.  Check back for completed photographs when the dimming interface and surrounding finishes are complete!