Solar and thermal performance in research complex glazing

University of Colorado's Research Complex Phase 2 (R2)

The basics: The glazing on the $236 million University of Colorado's Research Complex Phase 2 (R2) won the Project of the Year award for more than $3 million projects from the Colorado Glazing Contractors Association. The 11-story, 550,000-square-foot building features expansive glazing that drenches the interior with natural light and is designed to manage solar heat gain and to remain condensation-free at sub-zero temperatures. R2 features several daylit conference rooms, including a 4,000-square-foot divisible conference room that connects to the university’s Research Complex 1, R1, via a glass-enclosed walkway.

The players: Architects, Fentress Architects, Denver, KlingStubbins, Philadelphia; curtain wall and window wall supplier, Wausau Window and Wall Systems, Wausau, Wis.; contract glazier, Harmon Inc., Minneapolis; glass fabricator, Viracon, Owatonna, Minn.; aluminum framing finisher, Linetec, Wausau; composite panel, column cover and louver supplier, Crown Corr, Gary, Ind.; general contractor, Mortenson Construction, Denver.

The glass and systems: More than 109,000 square feet of unitized curtain wall and factory-glazed window wall systems, incorporating polyamide nylon thermal barriers; extruded aluminum sun shades on south-facing exposures. Nine different glass types in various silk screens and colors.