Glazing Design Advice

Bespoke Unsupported Glass Beam Detailing

The Purpose of an Unsupported Glass Beam 

An unsupported glass beam serves a critical role in structural glazing by providing lateral support without compromising transparency. Traditionally, vertical glass fins have been used to bear loads and prevent deflection, but they can interrupt sightlines and protrude into the space. By contrast, an unsupported glass beam allows for a frameless connection while maintaining structural integrity. This innovative solution simplifies the design and construction of glass structures by reducing the number of vertical joints and additional structural elements required. 

Innovative Structural Glazing at Model Farm 

The integration of an unsupported glass beam into a structural glazing system represents a significant advancement in modern architectural design. By eliminating the need for vertical glass fins, IQ Glass has simplified the construction process while enhancing transparency and maintaining uninterrupted sightlines. 

At Model Farm, this bespoke glass detailing was implemented to support a structural glass roof without requiring additional vertical framing. The result is a minimalist aesthetic that maximises light transmission and open views. 

Overcoming Design Challenges 

One of the main challenges when designing an unsupported glass beam is ensuring it can bear the necessary loads while maintaining a seamless appearance. The solution developed by IQ Glass involved interlocking glass laminates, where the glass beam slots into a precision-cut notch within the inner pane of the glass wall. This method eliminates the need for a separate fin and creates a seamless visual effect. The beam consists of multiple layers of toughened glass laminated together to achieve the required load-bearing capacity. Precision engineering ensures that the notch in the glass wall provides a secure seating for the beam while maintaining the overall structural integrity of the wall and roof system. By using low-iron glass, IQ Glass eliminates the green tint that can occur along the edges, resulting in a crystal-clear aesthetic. 

Applications for Architects 

You can integrate an unsupported glass beam into future projects where a clean, frameless design is required. The key benefits include maximised transparency by removing vertical fins, which creates uninterrupted views and allows natural light to flood the space. The simplified construction process means fewer components, faster installation, and a more streamlined build. Bespoke adaptability ensures that the glass beam’s thickness, depth, and length can be tailored to suit specific project requirements. IQ Glass can manufacture an unsupported glass beam up to 6,000mm in length within the UK and up to 12,000mm through international sourcing, providing flexibility for large-scale structural glazing projects. 

Explore the Innovation Further 

This detailing has been successfully implemented at Model Farm and can also be seen at our showroom in Amersham.  
Enquire now for a quote and discover how an unsupported glass beam can transform your next project.