Bird protection

Between glass

For new buildings, SEEN Elements are laminated between glass in the tested dot patterns and, unlike screen or digital printing, are permanently protected on the outside, leaving the glass surface untouched. For further information on the bird protection grids and SEEN Elements in general, please scroll down.

On glass

Retrofitting of existing buildings is possible as well. In the case of toughened safety glass or laminated safety glass, SEEN Elements can be installed either on the inside or the outside; in the case of insulating glass, they are usually installed on the outside. If you have any questions regarding the subsequent application of SEEN Elements, please contact rs@seen-group.com.

The SEEN Elements offer a new, effective way to combine glass and bird protection. Laminated between glass in new buildings or applied to glass in retrofits, the individual elements offer a wide range of possible applications. Two differently reflecting, three-dimensional surfaces made of aluminum, usually combined with a light-absorbing, color-neutral back, are available. The patterns with a coverage of less than 1%, which have been tested in the flight channel and are classified as highly effective, cause minimal irritation on the room side, but give the glass surface a high-quality exterior. The highly reflective aluminum coating "SEEN shiny" shows a visual reflection of 89%, the semi-reflective version "SEEN matt" 75%. The composition of the elements results in a three-dimensional effect, visible only on the metallic front.

Bird protection

The SEEN Elements offer a new, effective way to combine glass and bird protection. Laminated between glass in new buildings or applied to glass in retrofits, the individual elements offer a wide range of possible applications. Two differently reflecting, three-dimensional surfaces made of aluminum, usually combined with a light-absorbing, color-neutral back, are available. The patterns with a coverage of less than 1%, which have been tested in the flight channel and are classified as highly effective, cause minimal irritation on the room side, but give the glass surface a high-quality exterior. The highly reflective aluminum coating "SEEN shiny" shows a visual reflection of 89%, the semi-reflective version "SEEN matt" 75%. The composition of the elements results in a three-dimensional effect, visible only on the metallic front.

Front side:
highly reflective
Aluminium

Front side:
semi-reflective
Aluminium

Backside:
light absorbing and
color-neutral coloring

Grid of the SEEN Elements

For bird protection, SEEN Elements were tested in various grids in the years 2019 to 2021 using both the WIN and the NPW method. In contrast to the ONR test, which only tests transparent glazing such as balcony parapets or soundproof walls, the WIN method examines the influence of reflections on glass panes in the facade area with a dark background. The NPW method is an extension of the ONR test and includes a reflection of the surface on a light background.

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9/90mm grid "SEEN matt", tested in 2019
  • 9mm points, distance of 90mm from point center to point center
  • 0.8% covered area
  • Test method: WIN method (reflections on the facade)
  • Test glass: 2x4mm white glass with 2x0.76mm Saflex PVB
  • Effectiveness: 9% (means that 91% of the birds recognized the test pane marked with SEEN Elements as an obstacle and flew in the direction of the unmarked reference pane)
  • Use: Between glass in new buildings and on glass in retrofits
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9/90mm grid "SEEN shiny", tested in 2019, 2020 & 2021
  • 9mm points, distance of 90mm from point center to point center
  • 0.8% covered area
  • Test methods
  • Use: Between glass in new buildings and on glass in retrofits
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6/90mm grid "SEEN shiny", tested in 2020
  • 6mm points, distance of 90mm from point center to point center
  • 0,35% covered area
  • Test method: WIN method (reflections on the facade)
  • Test glass: 2x4mm white glass with 2x0.76mm Saflex PVB
  • Effectiveness: 13% (means that 87% of the birds recognized the test pane marked with SEEN Elements as an obstacle and flew in the direction of the unmarked reference pane)
  • Use: Between glass in new buildings
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3/50mm grid "SEEN shiny", tested in 2020
  • 3mm points, distance of 50mm from point center to point center
  • 0,27% covered area
  • Test method: WIN method (reflections on the facade)
  • Test glass: 2x4mm white glass with 2x0.76mm Saflex PVB
  • Effectiveness: 14% (means that 86% of the birds recognized the test pane marked with SEEN Elements as an obstacle and flew in the direction of the unmarked reference pane)
  • Use: Between glass in new buildings

Advantages of the SEEN Elements

Minimum coverage

The points of all grids cover less than one percent of the area and still achieve the classification of highly effective.

Materiality

The light-absorbing and color-neutral back of the dots guarantees minimal irritation on the room side. The metallic, three-dimensional front gives the glass an elegant and lively surface.

Glass quality

The SEEN Elements do not require tempered glass and therefore offer a significant advantage in terms of glass quality and cost.

Bird protection and design

Another advantage of SEEN Elements is the very flexible and cost-effective production. Only one DXF and PDF file is required to produce a specific design. Customized solutions combined with the tested bird protection pattern within one or distributed over several glass surfaces are thus possible, even in combination with other metal coatings, colored variants or other element shapes and sizes.

Test report & brochure

The test trials of the new WIN test method took place in the Flight Tunnel II of the Biological Station Hohenau-Ringelsdorf (Austria) between August 26 and September 27, 2019. The test glasses with the SEEN Elements "SEEN shiny" and "SEEN matt" were made of 2 x 4mm white glass and 2 x 0.76mm PVB film. Under exclusion of disturbing factors 187 valid tests were carried out. The testers consider the product to be one of the most effective solutions against bird strike, which has been tested so far with the WIN test arrangement (including mirror reflections on the pane surface) at the Biological Station Hohenau-Ringelsdorf. Here you can request the complete test report as well as the comprehensive brochure "SEEN Elements - bird protection with maximum transparency":

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