the central roof - it became known to me as a "reciprocal force rafter" structure - sure looks like a roof though.

At night the roof members create a huge spider web effect.

The beams each sit on their neighbour via a small housing (maximum depth 12mm).

Here is the roof wearing its coat of tin - off-white colourbond with heritage red flashings.

It was a great moment when the rain stopped falling inside (-;

The plastic cupola on the apex is temporary until the brass 'n glass permanent construction is ready for installation.

A detail of the roof junction - the clerestory is glazed and the internal floors are starting to dry out.

And here's the cupola frame in construction - all brass - a favourite metal of mine.

The structure mimic's the roof beams.

It will eventually be filled with stained and faceted glass to accentuate the roof design and create a unique lighting environment in the central room. For more on this see Cupola.