The application detailed here is the long facade of New Zealand’s national art museum, The Auckland Art Gallery/Toi O Tamaki.
Architects for the project, FJMT and Archimedia, explained that the intent of the facade
was simple:
“We were looking for very large glass panel sizes to provide maximum visibility out into the park and, more importantly, for park users to see into the gallery. It was all about making art more accessible, not just for a select few. We wanted people to see a vibrant and lively place to encourage them to visit the gallery.”

Big glass has two drawbacks in a gallery situation: energy loss and UV damage.
The architect’s solution involved a double-glazed curtainwall - butt-jointed on
the exterior, with hinged panels on the interior.
This super-insulating effect, coupled by the virtual elimination of UV, protects the
works on display for all to enjoy, from inside and out.

The design team simply found out how big a piece of glass they could get into New
Zealand and designed around that. The glass provider, Thermosash, approved the
use of only two hinges per each 835-pound panel, allowing for easy cleaning
between the two panes.

It is important to maintain this long line of flush overlay panels, especially in a new
building. There were no other hinges available that would allow for panels of this size
to be mounted and adjusted easily in three-dimensions.

Manfred Frank hinges, unlike any other hinge, can be adjusted under full load in a couple of minutes by a single person using a standard allen key or spanner. There is no need for any lifting gear.

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