Location: San Francisco, CA
Owner: Jay Paul Company
Glazing Contractor: Benson Industries Inc.
Fabricator: Hartung Glass Industries
Architect: Heller Manus Architects
Glass Product: Vitro Solarban® 70XL Glass
Designed to be the most resilient tall condominium on the West Coast, every square-inch of 181 Fremont’s 435,000 square-feet was engineered for superior performance, including the innovative, unitized curtainwall system. Hartung Glass Industries, a member of the Vitro Certified™ Network, fabricated Solarban® 70XL (now Solarban® 70) for the floor-to-ceiling facade.
Pre-certified as LEED® Platinum, 181 Fremont was designed to enhance the energy performance of the 55-floor, mixed-use tower by incorporating a floor-to-ceiling façade, fully glazed with Solarban® 70XL glass.
Solarban® 70XL glass is an advanced, triple-silver-coated, low-emissivity (low-e) glass that blocks 73 percent of the sun’s heat energy in a 1-inch insulating glass unit (IGU) while enabling 64 percent of the ambient daylight to pass through.
The design, by Heller Manus Architects, creates a sawtooth pattern throughout the curtainwall that acts as a passive solar design system with angled window mullions that face slightly inward against one another. Due its ability to block heat while transmitting light, Solarban 70XL glass accentuates the performance of the angled window mullions, which function as a shading device as sun passes over the building each day.