Architect and educator Cristina Parreño’s ongoing research project at the Massachusetts Institute of Technology is called “Tectonics of Transparency” and it’s challenging the “generic-ness” of glass in construction today. The project is being realized through a unique format of prototypes divided into three formal categories: the Wall Series, Tower Series, and Shelter Series. Each type is further broken down into scales: a “model scale” of 8-cubic-feet, and an “installation scale” of inhabitable size.[interstitial]
The format allows for experimentation with technique, and for multiple funding sources to support various components of the project.
Parreño pinpoints her interest in expanding the role of glass to a 1950s patent on “float glass” by Pilkington, who developed a process for efficiently manufacturing large flat sheets of the material.
“Despite its potential, modern technology didn’t fully exploit the multitude of material attributes offered by glazing, which in a flat, planar state can only be used as a non-structural infill,” Parreño told The Architect’s Newspaper (AN) in an interview. “When expanded to a greater depth, glass acquires multiple properties that expand its role beyond that of a transparent or translucent infill. If we attend to some of these properties—which are not fully exploited when glass is presented in its planar state—we can begin to foresee another type of depth between the two sides of the material.” Parreño’s prototypes are primarily interested in exploiting the material’s compressive strength, along with producing new tactile and visual effects.
One of the main challenges of the project has been developing new working techniques to manage the fragility of the panes during fabrication. This fragility provides only small tolerances for assembly that in turn demand a high degree of precision. Parreño’s assemblies involve bonding individual profiles of glass together using a high-performance bonding agent activated by UV light. The compound cures thin and transparent, allowing for maximum visibility between panes. Parreño says this construction system permits the glass to fully express its own visual and structural capacities, but it makes the construction process far more labor intensive.
The Tectonics of Transparency prototypes are a material translation of well-known concrete and brick structures to glass, as MVRDV recently developed for their Amsterdam Chanel store project. Parreño said MVRDV’s project demonstrates similar interests to hers, and that the interest of other architects in challenging the conventional use of glass “thickens the plot for discussions.” Parreño’s Tower Series reinterprets Uruguayan brick water towers built by Eladio Dieste, while her Shelter Series reinterprets Felix Candela’s ruled Mexican concrete surface structures.
Beyond explorations into the structural capacity of glass, Parreño also relates to the qualities of light inherent through assembly techniques. She cites REX’s fluted facade as a reinvented curtain wall of curved panels that “catch light in unexpected angles, throwing distorted reflections back at the viewer.” These visual effects are a key influencer of Parreño’s Tectonics of Transparency: “By exploring the ability of glass to modulate light through its enhanced translucency, variable transparency, opacity and the greater or lesser internal reflection of external light.”
Parreño says her next steps are to continue to “scale up” the prototypes, experimenting with how glass can move beyond the curtain wall. “The translation of these prototypes and small pavilions to a larger and more architectural scale is something that I am definitely interested in as the next step forward.”