- Location: Chicago, IL
- Size: 162,000 square feet
- Roof Type: Modified Bitumen
- Original 1927 Building
- Complete roof replacement of this occupied facility with modified bitumen system
- Custom logistics required extensive interior precautions to protect animal exhibits and patrons.
- Given the challenging access and active crowds all hoisting was done via helicopter.
- Vertical expansion; Walsh Construction
- A second floor was constructed over the active gallery area.
- The vertical addition required installing a new roofing system on the second floor.
- After which the existing roof over the first floor was then removed and that space was turned into offices.
