The installation has been developed through a collaboration between the Architectural Association (AA) Emergent Technologies & Design Post-Graduate Programme (EmTech) and BuroHappold Engineering. The brief examined the structural and geometrical properties of folded thin zinc metal sheets to create a structural form that uses minimal material to cover the terrace skylight. By utilising robotic folding techniques triangular connector components were made in a form to ease fabrication and the complexity at the joints. The geometric properties of the folds were also adjusted to control the curvature and strength of the joint whilst the robotic arm was used to progressively dent patterns into the components to stiffen up areas of high stress. The global geometry was designed for assembly without formwork and for repeatable joints to reduce the amount of material used as far as possible.