Video of Bird Friendly Glass
Glass façades of buildings are a serious threat to birds, killing millions of them every year in North America. Birds are attracted by the environment reflected in the glass. This problem is so serious that the American Bird Conservancy (ABC) and the USGBC have worked together to create LEED pilot credit 55 on bird collision deterrence.
Posted by Dominique Hébert on 06/18/2014
Walker Textures® AviProtek® acid-etched glass products…
The bird friendly glass solution
Glass façades of buildings are a serious threat to birds, killing millions of them every year in North America.
Birds are attracted by the environment reflected in the glass. This problem is so serious that the American Bird Conservancy (ABC) and the USGBC have worked together to create LEED pilot credit 55 on bird collision deterrence.
The issue is being studied, researched and discussed by many reputable bird conservation scientists and organizations. Several cities and states in North America have adopted bird friendly standards or guidelines to preserve bird life. It is obvious that more cities, states and provinces will join the movement in the near future.
The problem does not only exist during the migratory periods…But year round!
Architects and building owners are now facing a serious challenge. To come up with appropriate solutions to effectively prevent bird collision on building façades with proven glazing solutions that offer an appropriate balance between viewing areas and effective visual markers.
Glass surface treatments that reduce significantly the risk of bird collision have been researched by many experts. Their conclusions … the “2x4” rule.
Most birds will not fly into surfaces that have two inches or less of untreated horizontal space or four inches or less of untreated vertical space.
Therefore if the design is 2 inches or less horizontally or 4 inches vertically it meets the rule. By combining the 2’’ and the 4’’ the result is even more effective.
Different studies show that usage of visual markers on the number one surface is the most effective way to reduce the number of collisions from all angles.
Walker Textures® AviProtek® acid-etched glass products provide substantial bird friendly benefits:
- The patterns etched on the outside surface of the glass, offer an optimal combination of viewing areas and attractive bird safe designs meeting the 2x4 rule.
- The acid-etched surface mutes the reflection creating contrast which provides efficient visual markers for birds.
- The AviProtek® products have been tested by the American Bird Conservancy and provide excellent “threat factors”, ranging from 5 to 29.8 on position 1.
- Having the acid-etched on the outside surface also makes it effective for both direct and angled views. This is not the case for surface 2 treatments.
- There is no significant impact on the level of visible light transmission and can be combined with energy efficient glass in a double glazed unit.
- The resistance properties of acid-etched glass are equivalent or superior to unetched glass and offer the only suitable surface one treatment solution.
So if you work on a LEED project, need to meet bird friendly regulations or simply care about bird’s life, you can count on proven glass solution… because Walker Textures® AviProtek® saves birds!