Glass structures are responsible for the loss of an estimated one billion birds every year in North America. The American Bird Conservancy describes the problem as one of the most costly to the bird population. Incorporating a bird-friendly design in building development can save the lives of hundreds of millions of birds each year. Since birds cannot identify glass as a solid object, Goldray Glass has developed solutions for sustainable glass options to reduce bird casualties. These options have a very minimal impact on visible light transmission as well as promoting energy efficiency and the safety of birds.
According to a study conducted by the American Bird Conservancy using tunnel testing, it was concluded that the most effective way to minimize bird strikes with glass is to apply a pattern to the exterior surface (surface 1). Applying a pattern to the first surface of the glass on a building provides “visual noise,” which prevents birds from flying into the glass. Goldray glass integrates these visual markers on the exterior surface of the glass by applying patterns with acid etch, silkscreened ceramic frit or a digital print.
Studies indicate that patterns covering as little as 5% of the total glass surface can deter 90% of bird strikes under experimental conditions. According to new CSA standards, there shall be no more than 50mm vertically and horizontally between visual markers. The visual markers shall be a minimum of 4mm in diameter for individual elements and 2mm wide by 8mm long for linear elements.
Bird-Friendly Glass is typically used in exterior applications where bird safety is a concern, including curtain walls, vision, spandrel panels, shading fins, and exterior railings.
FEATURES & BENEFITS
- Cost-effective & low-maintenance.
- Highly durable, long-lasting, and abrasion-resistant.
- Available in laminated or monolithic form.