How Do Aluminum Curtain Walls Perform Under Extreme Temperature Changes or UV Exposure?

Aluminum behaves predictably under thermal stress, but façade performance depends on detailing and materials. Thermal expansion is accommodated by engineered slip joints, flexible anchors and gaskets; without these, temperature swings—intense daytime heat in Gulf cities and cold Central Asian winters—can lead to sealant fatigue, glass stress and frame distortion. Thermal breaks in aluminum extrusions reduce conductive heat transfer and help avoid internal condensation. UV exposure affects surface finishes and sealants; high-quality PVDF coatings and anodizing resist UV-induced chalking, fading and degradation. Sealants and gaskets should be specified for UV stability and matched to expected temperature ranges to avoid premature hardening or softening. Insulated glazing with low-E coatings maintains performance across cycles, while laminated glass minimizes risk of shard ejection if thermal stress causes breakage. In summary, with appropriate material selection—thermally broken frames, UV-resistant finishes and flexible movement details—aluminum curtain walls reliably withstand extreme temperatures and UV exposure found in the Middle East and many parts of Central Asia.