The project is basically a large roof that covers a space without columns . therefore the choice of covering material and how to place will be the keynote outcome.
The concrete surface deterioration of the original concrete plan dismissed its exposure direct to the outside. Therefore it was necessary a material able to offer a safe constructive solution and flexible enough to adapt to the roof shape and skylights.
We think that material could best response to these requirements was copper; the following characteristics were decisive for the choice:
- Lightweight. Being a self-supporting concrete roof with no secondary structure, was required a minimum weight material.
- Flexibility and adaptability to special shapes.
- Perfect integration in the natural environment:
- Natural and fine
- Colour and texture variability
- Excellent response to water and temperature changes.
With the aim of responding in the best possible way to the objective, to get a simple and clear copper plan, for that, we rather choose:
- Avoiding standing joints which cannot adapt to the curvature.
- The placing of 100x60 plates with joints lapped in both directions, giving priority to the horizontal.
- Elimination of any coping copper overlapping the edges under cor-ten steel beams.