Spandrel Glass

Spandrel glass is the area of glass panels that conceals structural building components such as columns, floors, HVAC systems, electrical wiring, plumbing, etc.

Spandrel glass is typically located between vision glass on each floor of a building.

Curtain wall and structurally glazed designs often require the use of spandrel glass to achieve a designer’s vision of the finished project.

Spandrel glass applications can be complementary or contrasting color(s) with respect to the vision glass.

Spandrel glass must be heat-treated to avoid thermal stress breakage.

Guardian has extensive experience with spandrel glass applications and can help architects and building owners achieve the desired appearance, while reducing the risk of thermal stress breakage.

When high light-transmitting or low-reflecting vision glass is specified, achieving an exact spandrel match can be difficult. Daylight conditions can have a dramatic effect on the perception of vision to spandrel appearance. For instance, a clear, bright sunny day produces highly reflective viewing conditions and may provide a good vision to spandrel glass match. A gray, cloudy day may allow more visual transmission from the exterior and produce more contrast between the vision and spandrel glass.

Guardian recommends full-size, outdoor mock-ups be prepared and approved in order to confirm the most desirable spandrel option for a specific project.