PRANCE metalwork is a leading manufacturer of metal ceiling and facade systems.
How do energy codes and sustainability certifications influence specification of a glass curtain wall system?
Energy codes and sustainability certifications materially influence the specification of a glass curtain wall system by dictating minimum thermal performance, daylighting, solar control, and embodied carbon considerations. In the Middle East, projects often target LEED, BREEAM, or regional schemes such as Abu Dhabi’s Estidama; in Central Asia, adopting international standards helps attract international investors. These programs push designers to favor low U-value assemblies, high-performance low-e glazing, thermally broken aluminum frames, and recyclable material content.
Sustainability criteria also extend to solar heat gain control and daylight harvesting: specifying spectrally selective coatings and frit patterns helps reduce cooling loads while preserving daylight. Embodied carbon of aluminum extrusions and glazing transport is now a consideration—designers may specify recycled-aluminum content, locally sourced components (where available), and modular unitized systems to reduce waste.
To comply, provide performance-based specifications with clear target metrics (assembly U-value, SHGC, visible light transmittance). Include lifecycle assessments and material data sheets in tender packages. For certification credits, document material sourcing, recycle rates, and VOC-free sealants. Also consider maintenance energy: systems that lower infiltration and require less mechanical ventilation contribute positively to operational energy credits.
Finally, coordinate façade choices with mechanical systems to optimize whole-building energy modeling. Demonstrate compliance with simulation reports and consider mock-up testing to validate predicted performance metrics required by sustainability certificates in Dubai, Riyadh, Doha, or Almaty.