Red Seal Glazier Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The term "curtain wall" refers to a non-structural outer covering of a building that is typically made of glass and metal. This type of façade is designed to enclose the building while allowing for a significant amount of natural light to enter the interior spaces. Curtain walls are often used in modern architecture to create sleek, contemporary looks and can help reduce energy costs by utilizing window performance technologies.

The curtain wall does not carry any of the building's structural loads except for its own weight and is typically hung from the building's structural frame. This allows for flexibility in design, as the curtain wall can be installed independently of the building's core structure. The use of glass provides an appealing aesthetic and promotes views of the outside, which is beneficial for occupant comfort and productivity.

The other options presented do not accurately define the term "curtain wall" as they refer to different glazing elements or functions. A type of insulating glass unit pertains to specific glass configurations that improve thermal performance, a protective layer on the roof relates to roofing systems, and a thermal barrier in glazing systems usually describes materials designed to minimize heat transfer, which is distinct from the concept of a curtain wall.