Perforated & Glass Facade Lighting Techniques
Perforated metal screens and glass curtain walls are the two most common facade types in Dubai that cannot be lit using conventional exterior-mounted wall wash or grazing techniques. Glass reflects external light sources, creating glare instead of illumination. Perforated screens require backlighting to reveal their patterns, not front-lighting which flattens the design. This guide covers the specialized techniques that transform these facade materials into compelling nighttime architectural elements.
Glass curtain wall techniques
| Technique | Installation | Effect | Best For |
|---|---|---|---|
| Mullion-integrated LED | Linear LEDs mounted inside at vertical/horizontal mullion positions | Glowing grid revealing structural rhythm | Commercial towers, hotels |
| Transparent LED mesh | Adhesive LED mesh on interior glass surface | Media facade with daylight transparency | Retail, entertainment venues |
| Edge-lit glass | LEDs embedded in glass panel edges | Panels glow as uniform luminous surfaces | Entrance features, premium lobbies |
| Spandrel backlighting | LEDs behind opaque spandrel panels between floors | Horizontal bands of light defining floor lines | Office towers, residential |
Perforated screen and mashrabiya lighting
Dubai's architectural heritage and contemporary design both favour perforated screens — from traditional mashrabiya on cultural buildings to modern parametric perforations on commercial facades. The lighting approach is consistently backlighting: LED sources positioned behind the screen so light projects through the perforations toward the viewer. The perforation pattern becomes the design — the lighting simply reveals it.
- Uniform backlighting. Diffused LED panels behind the screen for even luminance across all perforations. Creates a lantern-like effect.
- Gradient backlighting. Varying LED intensity across the screen to create directional effects or sunrise/sunset simulations.
- Dynamic RGBW backlighting. Colour-changing zones behind the screen for seasonal or event effects.