Using 3-D printers, prototypes of components were
produced to check their integration with the structure.
Due to the precision required, two mock-up systems were
built and reviewed by the design team and modifications
made to address issues found during testing. Noise
measurements resulted in the original actuator being
replaced by one which achieved significantly quieter
operation. The mock-up also allowed consideration
of maintenance issues, including louver or actuator
replacement and, in an emergency, the ability to close a
bank of louvers if an actuator failed.
In addition to the prototyping and approval process, each
segment of the louver system was completely built and
tested in the factory before shipment to Ottawa.
In the end, the custom louver system, while critical to the
successful operation of the debating chamber, is almost
invisible both from the interior and the exterior because of
its position in the middle of the multi-layer roof structure.