How does Curtain Wall design impact energy efficiency and occupant comfort in offices

Curtain wall design exerts direct influence on both energy performance and occupant comfort in office environments. Thermally, the curtain wall’s U-value, thermal breaks in framing, and the insulating quality of glazing determine heat transfer; improved thermal performance reduces HVAC loads, stabilizes indoor temperatures and lowers energy costs. Solar control (low-SHGC glazing, external shading) manages cooling loads and reduces local hot spots near perimeter zones, avoiding occupant discomfort and uneven thermostat cycling. Daylighting strategies affect visual comfort and productivity—proper daylighting reduces reliance on electric lighting, but uncontrolled direct sun causes glare and thermal discomfort. Combining diffuse high-VLT glazing, light shelves and automated interior shading balances daylight benefits with glare control. Acoustic performance is another occupant comfort vector. Perimeter offices require laminated or acoustic-rated IGUs and careful sealing to reduce exterior noise intrusion. Air infiltration control—tight glazing sealing and tested perimeter connections—improves indoor air stability and HVAC efficiency. Additionally, dynamic façades, such as switchable glazing or automated shading, enable adaptive responses to environmental conditions, improving both comfort and energy outcomes. Whole-building energy modeling should be used early to quantify the curtain wall’s impact on annual heating and cooling loads and daylight autonomy; these results inform glass and frame choices aligned with occupant comfort targets. For tested curtain wall assemblies and integration guidance, consult https://prancedesign.com/curtain-wall-advantages-disadvantages-guide/.