Retractable roof. Santa Ana castle

Retractable roof. Santa Ana castle


Client:Roquetas de Mar City Council Approximate budget: 240.000 €

The project was commissioned to bioGraphica by the City Council of Roquetas de Mar (Almeria, Spain). They were asking to adapt the inner ward of a recently renovated16th century castle in order to accommodate cultural and social events under adverse meteorological conditions.

The proposal was materialized by means of a telescopic roof over the inner courtyard of the castle which could be retracted, providing different aperture scenarios depending on the weather conditions. The roof incorporates a series of four skylight in order to provide natural daylight into the space when closed.

The structure is formed by six double portal-frames modules. The four central frames can travel on rails over the two ending and fixed modules by means of an electrical motorized system. As a result, the opening provided is 11,30 m wide and 37,50 m long. The modules are formed by two laminated timber rafter connected to a steel frame at both sides of the patio. The steel frames transfer the load onto a wagon driving system which is anchored to the floor structure of the terrace of the castle. Each module is reinforced by underneath cross-bracing cables. The topping element on top of the rafters is an insulated timber sandwich panel. The external skin of the shell is a metal cladding of traditionally seamed natural zinc.