Credit requirement "All glazed corners or fly-through conditions must have a Threat Factor less than or equal to 25." There is no guidance on how far to extend the pattern, horizontally, from the corner. Also, does this requirement apply to butt-glazed corner only? Any help greatly appreciated!
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Heather DeGrella
Sustainable Design Director, Associate PrincipalOpsis Architecture
71 thumbs up
June 19, 2015 - 12:42 pm
I received a reply from the American Bird Conservancy for the same question that I posted above. "What we’re trying to avoid is the situation on the slide below. We’re assuming that most buildings might have a corner room or office, which would reduce the problem. Current rule of thumb is 12 feet." The example slide provided indicates that corner conditions that are stopped by columns or vertical mullions also must comply with the 25 or less threat factor.
Kieran Timberlake
KieranTimberlakeSeptember 23, 2022 - 10:21 am
HI Heather, can you please provide the example slide that you mentioned in your post?
Stefan Knust
Director of SustainabilityEnnead Architects
1 thumbs up
September 23, 2022 - 11:34 am
Another useful reference (with visuals) for effective deterrence strategies, including glazed corners and other high hazard conditions, is in this new guidance documenet from NYC for Local Law 15 compliance: https://www1.nyc.gov/assets/buildings/bldgs_bulletins/bird_friendly_guid...