Europerfil develops and manufactures metal profiles, sandwich panels, and construction systems for building envelopes. The company offers a wide range of steel and metal cladding solutions designed for use across diverse building typologies, focusing on performance, durability, and architectural integration.
The Cityo Building in Madrid, a storage facility designed by Esperón Architects under Joaquín Esperón Solís, features an expressive façade clad with the Kefren architectural profile system from Europerfil in its two variants: Kefren 3.1 and Kefren 3.2. These profiles define the building's external envelope, shaping its volumetric expression while meeting functional and environmental requirements.
The Kefren profiles were selected for their capacity to articulate broad surface planes with concealed fixings, enabling the creation of seamless elevations with a consistent visual language. Installed in steel with a concealed fixing method, the profiles in their solid form establish continuous planes, while perforated sections have been integrated in selected areas to allow controlled ingress of natural daylight without disrupting the façade rhythm. The result balances the need for daylight penetration with a coherent and orderly exterior geometry.
The façade composition plays a dual role in both performance and urban presence. Architecturally, the geometry of the profiles features alternating widths and depths that generate subtle shifts in light and shadow across the surface. Functionally, the perforated areas moderate daylighting levels in interior zones, contributing to a passive environmental response that enhances occupant comfort in service and circulation spaces.
From a technical perspective, Kefren profiles support extended cladding runs with minimal visible fixings, creating a clean, uninterrupted façade plane. The steel construction provides structural stability and resilience to weathering, while the selected coating enhances durability and reduces maintenance requirements. The use of concealed fixing also simplifies installation and enables future adaptation or replacement of individual elements.
The Cityo Building’s program reflects a broader trend in urban environments: the increasing demand for flexible storage and logistics solutions. In dense metropolitan contexts like Madrid, where housing sizes have decreased and commercial activity has diversified, self-storage facilities provide adaptable spaces for both private and business users.
This contextual shift has fueled the transformation of existing structures into new uses across the metropolitan area, demonstrating how adaptive reuse can extend the lifecycle of industrial and commercial buildings.
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