Curtain walling


MXm Toggle

Mechanical Structural Glazing


The Mxm structural glazing curtain walling is a technical design enabling the creation of fully glazed facades without attaching aluminium frames to the glazing. As an alternative to SSG (Structural Sealant Glazing), which uses traditional silicone sealant, the glazing for the fixed and opening sections is attached to the aluminium frame mechanically using special aluminium supports. From the outside, only the glazing and a thin gasket is visible. 

Key features of the GEODE MX 52 Curtain Walling

  • Flat or faceted facades - 6mm to 32mm glazing available as a flat facade or faceted up to 20°
  • Superior load distribution - Less deflection across the transoms allows this system to hold large, heavy glazing units
  • Choice of glazing gaskets - available as over-sized vulcanised corners, linear supply or made-to-order frames to suit project requirements

Design features of the GEODE MX 52 Curtain Walling

  • Visual Consistency - Unique aluminium structure for all external appearances
  • Intelligent Design - Designed for high quality manufacturing and installation 
  • Design details - A wide range of external caps provide greater aesthetic choice
  • Choice of infills - The system can be used with glass, insulated panels and other types of opaque panels 

Our brochure is available to download on the documentation tab above. 

Book on our Product Introduction Training online.

GEODE MX 52 brochure (pdf)

Product benefits


  • Fixed Frames - 4m x 2m max - up to 400kg weight
  • Projecting top-hung vents - 120kg max weight
  • Parallel opening vents - 150kg max weight


  • Concealed opening vents - projecting top hung or parallel
  • Flat or Faceted up to 10°
  • Semi facade, combine with capped solutions


  • Glazing is fixed directly onto the curtain wall grid structure without any intermediary profile
  • Glass panels are held onto opening frame by aluminium pressure blocks and can accomodate security peices


  • Thermal Insulation with glazing - Ug = 1.1 W/m²K
  • Fixed curtain wall with 80% glazing - Ucw =1.5 W/m²K
  • Fixed curtain walling with 50% glazing - Ucw = 1.1 W/m²K.

More information

Technical manual

Technical Manuals

Our technical manuals are available for our customers to view after registration

If you are a customer who cannot see these after logging in, please contact your Account Manager or Customer Service Representative for assistance. 


Projects using curtain walling GEODE MX 52

IAAPS, Bristol

United Kingdom
The selection of a sustainable façade system from TECHNAL satisfies the requirement to deliver a sustainable and energy efficient building for the University of Bath’s Institute for Advanced Automotive Propulsion Systems (IAAPS) – a new, world-class automotive propulsion research facility in Bristol, constructed to achieve BREEAM Very Good standard.

Blackburn Wing, Bowcliffe Estate

United Kingdom
Aluminium Curtain Walling from Technal contributed to the multi-award-winning conference hall which has achieved architectural excellence for its design and construction suspended in the woodland canopy on the historic Bowcliffe Estate in Yorkshire.

The 2,060sqft aerofoil-shaped ‘treehouse’ was commissioned by the Bayford Group at the former ancestral home of aviation pioneer Robert Blackburn, who inspired its aeronautical theme and its name, the Blackburn Wing.

An Aerofoil-shaped Treehouse

Accommodating up to 140 people, the stunning timber, copper and glass events centre is the centrepiece of a £6m multi-phase restoration project across the nineteenth century listed estate near Wetherby. It is one of only two structures ever to have been built in an area of ancient woodland and appears to float among the trees.

Aeronautical Design Theme

The building’s structure is supported by galvanised steel legs which are stabilised with steel cross-bracing to replicate the original appearance of a biplane wing. There are two wooden ‘runways’ which link the wing to the estate grounds leading to the main building. The aeronautical design theme is referenced internally with a bespoke bar created from a Boeing 747 engine intake cowling; tables have been fabricated in the shape of aeroplane wings, and a frame taken from the wing structure of a Hawker Siddeley DC-9.

Comments from the RIBA Award Judges

The judges at the RIBA awards said, "This building is a tour de force, a piece of bravado, worthy of its inspiration, its location and the passion of its client. Whilst equally bold in both its conception and final form, its aptness to its siting within both a historic environment and among precious trees is admirably – even surprisingly – sympathetic."

The Architect’s Perspective

Oliver Clark, Project Architect, The Harris Partnership:

“We are incredibly proud of this scheme and are very happy with Technal’s curtain walling. It was absolutely paramount that the glazing to the ‘wing’ of the building provided uninterrupted views across the woodland and a clean, crisp façade with a glass-to-glass appearance that correlated with the copper cladding. This has been perfectly achieved with the GEODE-MX system.”

LUSEP, Loughborough

United Kingdom
Sustainable construction is at the core of the first Enterprise Zone office development at LUSEP and utilises TECHNAL UK products extruded with the Hydro CIRCAL 75R alloy - the prime quality aluminium that uses at least 75% post-consumer scrap

Paradise Street, Coventry

United Kingdom
TECHNAL has adapted its FY65 aluminium window specification to meet the narrower than normal opening vent dimensions at a best-in-class £52 million student village in Coventry, balancing the requirements for daylighting, ventilation, student safety and aesthetics

Dock Office, Salford

United Kingdom
The residential Refurbishment of the Iconic 1920's Dock Office in Salford Quays has included a stunning two-storey steel-framed structure at the roof level, incorporating Technal MX Toggle Curtain Walling to all sides achieving panoramic views across the city.

Lawson Quay, Lancaster

United Kingdom
Caton Court, part of the wider Lawson’s Quay site, is currently being built by Eric Wright Construction for the developer Hines UK, while Preston based LDG Contracts is the specialist fabricator which chose to utilise the Technal MX curtain wall and FY65 window systems for the first phase of the project.