CBE Facade Map

Supporting the adoption of advanced facade design strategies and technologies

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Cambridge Public Library


Cambridge, MA, USA

Principal Use


Design Architect

William Rawn Associates

Gross Floor Area

13,006 m2 Units SI IP

140,000 ft2

Reason(s) for inclusion

Building Name

Cambridge Public Library


449 Broadway, Cambridge, MA 02138

Description / Additional Information

Describe the key innovation and technology aspects of the project

Project Narrative

The Cambridge Public Library's renovation includes a double-skin curtainwall system, measuring 180 feet long, 35 feet high, and 3 feet deep with adjustable louvers. This system enhances transparency and regulates heat gain, loss, and glare. It achieves approximately 50% energy savings over standard curtainwalls and enhances comfort in reading spaces. The 3-foot airspace is seasonally adjustable, opening in summer to prevent heat entry and closing in winter for insulation.

General Information

Year completed (or major renovation)


Climate Zone


Building Certifications (check all that apply)

  • LEED

External Links

Link(s) for more information

Other Design Features

Energy Performance

Construction Type

Construction Type

  • Curtain Wall

Prevalent Glazing Type

  • double glazing

Main Cladding Material

  • Glass
  • Aluminum
  • Steel

Skin Type

Skin Type

  • Double Skin Facade

Geometrical configuration

  • Corridor

Solar Shading

Solar Shading Strategy

  • Dynamic Exterior Shading

Exterior shading

  • Exterior Movable Louvers or Blinds




Embodied Carbon

Energy Generation

Does the facade produce energy?



Description / Additional Information