A superior balance of light transmission, solar control and thermal insulation

Date: 1 May 2015

Viridian PerformaTech™ balances high levels of light transmission with very low levels of solar heat gain, low reflectivity and exceptional levels of thermal insulation.

The performance characteristics help significantly reduce both the heat and air conditioning levels of a building, in turn actively contributing to the provision of a perfectly balanced living and working environment.The high levels of performance associated with Viridian PerformaTech™, affords developers, architects, designers and engineers alike the opportunity to create economically viable, aesthetically pleasing and environmentally sustainable buildings.This in turn enables the increasingly stringent demands of regulatory requirements and prospective owners or tenants to be easily met. Available only as part of a Viridian ThermoTech™ insulating glass unit (IGU). Viridian PerformaTech™ is available in either heat strengthened or toughened form.



By combining Viridian PerformaTech™ with any one of the Viridian range of products within an IGU, a vast range of performance characteristics and aesthetic options can be achieved.



Features and benefits


  • Exceptional balance of high light transmission, low solar heat gain and low U Values.

  • Fully supported by the Viridian product warranty program. 

  • Locally stocked and manufactured for short lead times

  • Broad range of product combinations. 

  • Available only as part of a Viridian ThermoTech™ insulating glass unit (IGU) for maximum performance. 

  • Available in heat strengthened or toughened form



Selectivity



Glass selectivity is an index that reports the relationship between light transmission and solar heat gain, it is measured as an index (S = VLT/SHGC) with a high selectivity more preferable in modern building design.



Solar heat entering a building can be limited without reducing light levels by using a high-performance coated glass; this restricts UV and infrared radiation from passing through but importantly provides exceptional levels of natural daylight whilst also retaining as neutral and natural appearance as possible. Viridian’s glass possessing the highest selectivity is our PerformaTech™ range.



High selective glasses, generally above 1.8 offer exceptional performance which provides some of the best energy savings through the lowest conductance (U-Values) and best solar control (SHGC), high visible light transmission assists in the requirement for less artificial lighting during daylight hours.



Examples of Selectivity of Viridian glass;



Viridian ThermoTech™ SuperGrey Selectivity 0.38

Viridian ThermoTech™ Clear Selectivity 1.09

Viridian PerformaTech™ Silver 236 Selectivity 2.36



Applications



  • For commercial buildings with large expanses of glazing that require the highest performance in environmental control for energy savings, yet retain transparency

  • Offices

  • Curtain wall and large glazed facades

  • Commercial buildings and curtain walls

  • High rise apartments



Maximum size


  • Nominally 3000 x 2000mm


How to specify




  • Select glass name


PerformaTech Clear 206

PerformaTech Silver 196

PerformaTech Silver 236




  • Select thickness – process


6+12+6 IGU




  • Select colour


Refer to performance comparison chart





* When the Viridian PerformaTech is the outside glass the coating is to surface 2, when it is the inside glass the coating is to surface 3.

IGU Gap = 12mm and is Argon filled.

600450 A superior balance of light transmission, solar control and thermal insulation glassonweb.com

Others also read

Amid global calls for the adoption of green materials on World Environment Day, Glass Futures and AGI Glaspac are delighted to use the auspicious occasion to announce a pivotal collaborative sustainability agreement.
Daylight meets design in the new Activo center, where OKAWOOD enhances comfort, energy efficiency, and well-being on the shores of Bremen’s Werdersee.
To guarantee long-term performance and customer trust, Weihai Blue Star turned to non-invasive gas measurement with Sparklike Handheld—setting new standards in insulating glass quality.
At glasstec 2026 held in Düsseldorf from 20 to 23 October 2026 solutions for current and future challenges in the glass industry will be centrestage once again. The Hot Topics read: Artificial Intelligence (AI) & Digital Technologies, Decarbonisation and Circularity.
The Fenestration and Glazing Industry Alliance (FGIA) has updated guidance for the dimensional tolerances of insulating glass units (IGUs) produced for installation in fenestration products.
A new report in Glass Construction & Facade shows how thin glass and advanced interlayers like evguard® and evguard® MPE can cut laminated glass weight by over 60%, supporting both sustainability and high performance.

Add new comment

From industry

52 Corniche El-Nil, AL-SHARIFAIN Tower 10th Floor,
Maadi,
Cairo Governorate
11728
Egypt

Polígono Industrial El Bayo, parcela I, 19
24492 Cubillos del Sil León
Spain

NEWS RELATED PRODUCTS