Competition: Miguel A. Alonso del Val, Rufino J. Hernández Minguillón, Jorge Gambini Ons. Authors of the project and execution: Miguel A. Alonso del Val, Rufino J. Hernández Minguillón, Álvaro Cerezo Ibarrondo. Collaborators: Luis Fernández del Arco, Lorena Borquez, Eduardo Ozcoidi. Technical Architects: Ana Moral García. Engineering: GE & Asociados. Developer: Visesa. Contractor: Construcciones Amenabar. Project Date: October 2003. Completion Date: October 2004. Gross external area: 1,127 sqm.
The preparation project for the future head offices of VISESA aims to create a continuous and fluid space into which the different sectors of the programme are integrated. The outside will be a continuous glazed façade, in the space between the pillars and the maximum alignment, comprising an exterior sheet made up of steel frames and safety glass with vertical dry-stacked joints; interior air chamber (60 cm wide) to enable the glass to be cleaned on the inside and outside, and an inner sheet comprising steel frames and insulating glass with chamber. The system is completed with adjustable aluminium shutters and motorised awnings that prevent direct sunlight from falling on work stations.
The bioclimatic façade is operated independently from the shutters or awnings that are activated in response to direct sunlight.
At the bottom of the outer sheet, there is a permanent air access shaft. At the top of the outer sheet there are grilles with a system of flaps to expel air or take air into the climate control system depending on the season:
WINTER: The sun’s rays warm the air in the chamber. A probe located in the chamber detects the air temperature inside the chamber and activates the flap to provide access to the system of climate control.
SUMMER: The sun’s rays warm the air in the chamber. A probe located in the chamber detects the air temperature inside the chamber and activates the flap to allow for the expulsion of overheated air in the chamber.