Located at the heart of the central campus of the Universidad Industrial de Santander (UIS), the Aula Máxima “Luis Eduardo Lobo Carvajalino” of the School of Mechanical Engineering is more than an academic venue: it is an architectural icon that has shaped the urban and cultural history of Bucaramanga since 1959. Designed by architect Mario Pilonieta with structural calculations by engineer Herbert Ariza, this space stands out for the boldness of its form and its futuristic vision: a double-curved hyperbolic paraboloid built as a thin self-supporting shell of reinforced concrete, held in place only by a minimal internal metal structure. Its roof, just 20 centimeters thick, spans up to 18 meters—an astonishing technical achievement for its time.
“The roof of the Aula Máxima is an example of early innovation in sustainability,” explains architect Alejandro Ordóñez Ortiz, professor at Universidad Santo Tomás. “Pilonieta, influenced by the work of Mexican architect Félix Candela and by the teachings of his mentor Fernando Martínez Sanabria, understood that it was possible to create large spaces using minimal materials. That vision aligns perfectly with today’s principles of energy efficiency.”
This innovation, he notes, lay in building a large area with minimal material consumption: “Back in 1959, Pilonieta was already thinking about what we now call sustainability and energy savings. That roof demonstrates it clearly, reducing material input to nearly the minimum,” adds Ordóñez.
Energy efficiency was also achieved by replacing air conditioning and fans with natural ventilation. “Another innovation was the ventilation system, made up of C-shaped openings placed in both directions so that air could flow through. These vertical cavities let in the air but not the light. It was always cool,” recalled Mario Pilonieta.
Between Art, Science, and Memory
Beyond its technical aspects, the Aula Máxima embodies a fusion between the rational and the organic. The classroom wing of the building is sober, geometric, and functional; the Aula Máxima, in contrast, introduces softer, curved, almost tactile forms that evoke a more human sensibility. This duality, Ordóñez explains, turns the building into a work of architectural art—unity in diversity.
“…this is the beating heart of the University, where modern architecture converges in two important ways: one grounded in the canon of functional rationalism, and the other in an organic rationalism that recalls the Mexican tradition of Félix Candela. Pilonieta dared to experiment with a hyperbolic paraboloid, and with strong engineering support and custom-made wooden formwork, he gave the structure a texture that—exposed to sunlight throughout the day—constantly changes its expressive capacity,” explained architect Otto Cala, professor and member of the Santander Departmental Heritage Committee.
When asked how the roof was built, Pilonieta once replied: “Entirely with straight lines. The expensive part was the formwork, because it is just a 7-centimeter-thick shell. Additional supports were almost unnecessary, as the structure rested on only four points.”
For these reasons, the building was declared a National Architectural Heritage site, with the highest level of protection. Its recognition lies not only in its unique design but also in the collective memory it preserves: generations of students have attended classes, conferences, and events here, making the Aula Máxima a fundamental part of the identity of UIS.
Renewal with Respect
In 2018, UIS carried out a careful architectural restoration of the Aula Máxima, led by Rector Hernán Porras Díaz, under the supervision of Mario Pilonieta himself. The restoration was complemented by modernization of the interior, including upgraded sound, video, and connectivity systems, as well as new furniture to ensure optimal comfort and functionality—without altering its architectural essence. The Aula Máxima now accommodates 192 seats, six of them adapted for people with disabilities.
A Living Legacy of Modern Architecture
The Aula Máxima also stands as a brilliant example of modern architecture in Colombia. Its forms resonate with the principles of the International Style—developed in Europe and the United States—but reinterpreted within the Santander context: cross ventilation, solar protection, climatic orientation, and integration with the surrounding vegetation.
“Modern architecture found new expression in these organic forms,” notes Ordóñez. “The Aula Máxima reflects influences from Wright, Niemeyer, and Aalto, yet transforms them into something uniquely its own. It demonstrates how to design architecture with identity, common sense, and technical elegance.”
The Aula Máxima impresses not only with its form but also with its timeless relevance. It is a landmark, a symbol, an example of how architecture can embody art, science, and memory all at once. Like every true classic, it does not age—it endures.
