Bird Protection Glass & Custom Low-Emissivity Coatings

Bird Protection Glass & Custom Low-Emissivity Coatings: Sustainable design to wildlife conservation and how graded or custom low-Emissivity coatings significantly increase the energy efficiency and occupancy comfort in buildings

Researchers estimate that hundreds of millions of birds are killed each year in North America due to collisions with glass on human-built structures, making bird collisions one of the most significant causes of avian mortality globally. With the understanding that birds are able to see light in the ultraviolet spectrum, bird-friendly glass innovator, Arnold Glas developed ORNILUX bird protection glass. The glass has a patterned, UV-reflective coating making it visible to birds while remaining virtually transparent to the human eye. ORNILUX bird protection glass is available as laminated glass or energy-efficient, double- or triple-glazed insulated units with an additional low-E or solar control coating that offers a bird-friendly glass without compromising thermal performance or light transmittance. Customized low-E coatings offer not only the ability to customize the performance and color of glass so that it interacts with the rest of the building and its environment, but also that a single IGU can be designed as a graded/blended coating (known as Sunbelt Dynamic). For example, the visible light transmittance in the upper area of the glass unit is high to maximize visible light for comfort, and is then gradually lowered towards the bottom of the unit to reduce heat gain and glare while maintaining an unobstructed view.

Learning Objectives

  1. Incorporate transparent bird friendly architecture in future projects by using an insulating glass with UV-reflective characteristics.
  2. Define which areas of a building are more likely to be affected by bird window strikes.
  3. Learn how to optimize the light transmission of a glass façade by combining the presented solar control coating concept (4 coatings) in one building.
  4. Define how custom colors and glass performances can be achieved through sputter coatings to optimize the energy efficiency and improve the aesthetic design of a glass façade and or single glass unit. Furthermore, the student will be able to apply graded glass coatings that reduce glare and optimize lighting for comfort in interior space.
  5. Recognize anisotropy in tempered glass based on the presented project pictures.

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