PRANCE metalwork is a leading manufacturer of metal ceiling and facade systems.
How do glass wall curtains affect energy efficiency and daylight control in office buildings?
Glass wall curtains can significantly influence energy use and occupant comfort in office buildings when designed with an integrated approach combining glazing performance, metal framing thermal breaks, and dynamic shading strategies. Key performance metrics are U-value (thermal transmittance), SHGC (solar heat gain coefficient) and visible light transmittance (VLT). High-performance IGUs with low-E coatings deliver lower U-values and controlled solar gain; coupling these with thermally broken aluminum frames minimizes conductive losses through the frame.
Daylight control is achieved through careful glass specification and shading. External shading—brise-soleil, louvers, or perforated metal screens—reduces peak cooling loads while preserving daylight. Internally, low-reflectance blinds or smart glazing (electrochromic) can modulate light and glare. For GCC projects where solar loads are extreme, prioritize low SHGC coatings and consider frit patterns to reduce glare without losing transparency.
Integration with building systems: daylight harvesting controls linked to lighting and HVAC systems convert increased daylight into reduced electric lighting and conditioned air needs. Whole-building energy modeling should determine optimal glazing-to-frame ratio and shading strategy for different orientations. For Central Asian climates with cold winters, balance solar gain for passive heating with insulation requirements to reduce heating demand.
In summary, when paired with thermally efficient metal framing, tested IGUs and adaptive shading, glass wall curtains can support energy-efficient office design, enhance occupant comfort, and meet regional energy codes across Middle East and Central Asia contexts.