No product can be guaranteed to stop all collisions in real world conditions. Glass can vary in appearance from one façade of a building to another or with time of day, depending on solar angle, reflected environment and other factors. The Threat Factor number is determined under standard conditions and does not capture that variety. Instead, Threat Factor is a relative index, and products with lower TFs are considered more effective at preventing collisions. A TF of 30 suggests that collisions will be reduced by at least 50 percent and is ABC's upper threshold for recommending a product. Products with UV patterns should be considered carefully for some applications: Materials with ultra-violet patterns will vary in effectiveness with the amount of UV light present. This means that when the UV index is low – under low light conditions in early morning or evening or if the glass is shaded, or when it is overcast – UV patterns will be less visible to birds. In addition, not all types of birds can see UV. For example, songbirds can see UV, raptors and pigeons cannot. Because Threat Factors can be effected by low-e coatings, published Threat Factors apply only to the glass assembly tested.
Saflex® PVB interlayer with 9 mm opaque sequins shiny silver on front, black on back. Sequins are spaced 90 mm from center to center with 0.8% coverage. Tunnel tested: Hohenau VLR = 11%
Glass composition: Glass composition: 2 x 4mm low iron glass with 1.52 mm Saflex® FlySafe™ 3D
Window films with bird-friendly patterns will deter collisions for years.
Solyx horizontal Bird Safety Film has been found to be extremely effective, with numerous large scale installations dating back to 2009. As a rule, window film requires professional installation.
Window films with bird-friendly patterns will deter collisions for years.
As a rule, window film requires professional installation but can last for tweny years or more. Solyx Bird Safety films are intended to be installed on the outside of the glass.
Window films with bird-friendly patterns will deter collisions for years.
As a rule, window film requires professional installation but can last for tweny years or more. Solyx Bird Safety films are intended to be installed on the outside of the glass.
Tunnel tested at Carnegie Museum's Powdermill Avian Research Center.
Tested as IGU; Vertical frit lines, 1/8", spaced 0.5", 20% coverage on surface 2. Also on surface 2 low E VE-2M
Tested as monolithic panel at Hohenau Tunnel in Austria surface 1, orange and black vertical lines Tunnel test, Hohenau
Tested as monolithic panel at Hohenau Tunnel in Austria
Saflex® PVB interlayer with 9 mm opaque sequins shiny silver on front, black on back. Sequins are spaced 90 mm from center to center with 0.8% coverage. Tunnel tested: Hohenau VLR = 19%
Glass composition: Glass composition: 2 x 4mm low iron glass with 1.52 mm Saflex® FlySafe™ 3D
1/8" gray horizontal lines spaced 1" apart
8 mm white squares; 50mm X 50mm apart. Tunnel tested at FBBO
6mm clear glass – 0.76mm Trosifol PVB with black printed dots (8mm, 25% total) – 0.76mm Trosifol PVB –6mm glass with sun coating on #4 surface (68% Light transmittance, 33% Solar Transmittance, Visible Light reflectance outside 11%) – 12.7mm air space – 6mm clear glass. Tunnel tested at FBBO.
