Design Considerations for Commercial Fenestration Systems  

A guide to specifying storefront, window wall, and curtain wall systems

Sponsored by National Glass Association | By Andrew A. Hunt

This course is part of the Glass and Glazing Design Academy

Fenestration systems for commercial buildings come in a wide range of types, styles, installation methods, budgets, and performance attributes. The variety available can pose a challenge to architects trying to keep up with the distinctions, advantages, and requirements of different systems. This article will provide a comprehensive overview of storefront, window wall, and curtain wall fenestration systems for commercial buildings. Each style has a very specific application and installation method, and appreciating the distinction between each is critical to ensure buildings are both aesthetically beautiful and help protect occupants from invasive air and water infiltration.

Fenestration systems for commercial buildings come in a wide range of types, styles, installation methods, budgets, and performance attributes. The variety available can pose a challenge to architects trying to keep up with the distinctions, advantages, and requirements of different systems. This article will provide a comprehensive overview of storefront, window wall, and curtain wall fenestration systems for commercial buildings. Each style has a very specific application and installation method, and appreciating the distinction between each is critical to ensure buildings are both aesthetically beautiful and help protect occupants from invasive air and water infiltration.

Originally published in Architectural Record

Originally published in September 2024

LEARNING OBJECTIVES
  1. Compare and contrast storefront, window wall, and curtain wall systems in commercial buildings.
  2. Describe the common assembly methods of window wall glazing systems.
  3. Explain the advantages and disadvantages of stick, unitized, and hybrid curtain wall systems.
  4. List potential methods of glazing curtain wall systems: captured, structurally glazed, toggle-glazed, and point-supported.