Candela's major contribution to architecture was the development of thin shells made out of reinforced concrete, popularly known as cascarones.

[citation needed] At the end of his career he worked with the architect Fernando Higueras, designing inverted umbrellas with 12-meter cantilevers,[2] and with the young and innovative Emilio Pérez Piñero [es].

In his junior year, his visual intelligence and his descriptive geometric and trigonometric talent helped him catch the eye of Luis Vegas.

As an expert of paraboloid and hyperbolic geometry, he was drawn to experiment on a series of residential and commercial shell-shaped structures since the beginning of his career.

Candela worked very hard during his lifetime to prove the real nature and potential reinforced concrete had in structural engineering.

Around 1950 when Candela's company went to design laminar structures, he started researching journals and engineering articles for as much information as he could find.

Félix Candela worked as an architect upon his arrival in Mexico until 1949 when he started to engineer many concrete structures utilizing his well-known thin-shell design.

Ruiz Cortines came up with a budget to enable his construction declaration to come true, requesting ₱81,200,000 (pesos) more funding than was used in 1955.

: Felix Candela, Builder of Dreams[6] Candela's drawings, correspondence, personal and professional papers, and writings are held in the permanent collection of the Department of Drawings & Archives in the Avery Architectural and Fine Arts Library at Columbia University in New York City.