FenestrationStrategies

Achieve High Performance: Window-to-Wall Ratio in High Rise Residential Buildings

This 6-page technical design fact sheet by ComEd, about window-to-wall ratio, explains why the quantity of exterior glazing is likely to have a greater impact on energy consumption and occupant comfort than any other decision in the design of a building.

Window-to-wall ratio and Chicago’s path to deep efficiency

"Vast areas of exterior glazing have a greater impact on energy consumption than any other decision in the design of residential high-rises."

Innovative Façade Systems for Low-energy Commercial Buildings

Façade designs that deliberately recognize the fundamental synergistic relationships between the façade, lighting, and mechanical systems have the potential to deliver high performance over the life of the building. These "integrated" façade systems represent a key opportunity for commercial buildings to significantly reduce energy and demand, helping to move us toward our goal of net zero energy buildings by 2030.