Mono Spandrel Solutions

Finding the Perfect Match – Spandrel Glass Solutions

The beauty of a fully glazed transparent façade of a building can sometimes be spoilt by the spandrel glass, which simply may not match up in terms of its colour and reflections. Rather than creating a stunning, uniform glass façade, the architect may have to compromise on an inferior solution. While spandrel glass solutions do exist that closely match the spandrel glass with the vision glass, the cost can also be prohibitive.

Mono Spandrel Glass

Why do we need spandrel glass?

Spandrel glass is the opaque glass that conceals structural building components such as columns, floors, HVAC systems, vents, electrical wiring and plumbing, preventing these from being visible from the exterior of the building. Curtain wall and structurally glazed designs often require the use of spandrel glass to achieve an architect’s vision of the finished project. Typically located between vision glasses on each floor of a building, spandrel glass can be either complementary or contrasting in colour when compared to the appearance of the vision glass.

Mono Spandrel Glass

The challenge

Where architects desire a uniform appearance of a glass fronted building, precisely matching the spandrel glass with the vision glass – in terms of colour, reflectivity and durability – can be a challenge. When vision glass is specified with a high light transmission or low external reflection, finding an exact colour match between spandrel and vision glass is challenging. Daylight conditions can have a dramatic effect on the perception of vision-to-spandrel appearance. For example, a clear, bright sunny day provides a higher reflective appearance, which will improve the vision-to-spandrel match. A grey, overcast day may allow more visual transmission from the exterior and produce a greater contrast between the vision and spandrel glass.

Guardian Glass in Spandrel Solutions

Through extensive testing over the past few years with Guardian glass products, Guardian Glass has developed a comprehensive range of spandrel glass solutions, including monolithic and IGU solutions. As far as monolithic spandrels are concerned, there are three solutions:

  • 1) painting of uncoated float glass (picture 2)
  • 2) a selection of Guardian SunGuard® HD (High Durable) or Guardian SunGuard® Solar reflective coated glass allows for the application of ceramic frit directly to the coated surface for a monolithic spandrel. This provides an economical, cost effective and aesthetically matching solution that is suitable for many applications
  • 3) the shadow box construction using a monolithic Guardian SunGuard® HD coated glass (picture 3).

Guardian Glass Coatings for monolithic spandrels

Guardian Glass offers its most durable coatings, Guardian SunGuard® HD and Guardian SunGuard® Solar RB 20, for monolithic spandrels. These can be matched closely to a range of Guardian SunGuard® coated solar control glasses, including SunGuard® eXtra Selective (SNX), SunGuard® SuperNeutral (SN), SunGuard® High Durable (HD), and SunGuard® High Performance (HP). The compatibility of SunGuard HD coatings and SunGuard Solar Royal Blue 20 with paint were approved by the IFO (Institut für Oberflächentechnik) in Germany.

Related Products

SunGuard®

High-performance architectural glass that helps architects and designers Build With Light®

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Talk to us about using Spandrel Mono Glass in your project

We recognise that the needs and requirements of every project are unique. If you are interested in learning more about the mono-spandrel solution with Guardian glass or if you would like to discuss the requirements of your project, please contact your local Guardian Glass expert.

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