Can curtain wall systems reduce solar heat gain?

Reducing solar heat gain in Gulf-region towers—such as those in Riyadh or Doha—relies on a combination of glazing, coatings, and shading integrated within aluminum curtain-wall systems. Low-E coatings reflect infrared wavelengths while allowing visible light, cutting heat ingress by up to 60%. Tinted or spectrally selective glass further reduces solar gain without darkening interiors. Integrated aluminum louvers or external fins—often powder-coated to match ceiling systems—provide dynamic shading angles based on sun path analyses. Pressure-equalized cavities behind glazing also dissipate heat buildup. Inside, reflective aluminum ceiling panels bounce daylight deeper into spaces, reducing reliance on artificial lighting. For optimal performance, consultants simulate annual heat load using EnergyPlus models tailored to Abu Dhabi’s climate data. Combined, these methods keep interior temperatures steady, drastically lowering air-conditioning demands.