In the mid-1950s, Roy Halvorson, the father of Breuer's client June Halvorson Alworth (later Starkey), asked Breuer to design an enclosure that would enable him to use his pool year round despite the freezing temperatures in Duluth, MN. Breuer and his client originally envisioned a vinyl cover for the pool but photographs reveal a structure with a curving roof of corrugated metal. Brick walls topped with panels of translucent Herculite, a heavy-duty tempered glass, surrounded the pool structure and served as a windshield.