How does a curtain wall system compare to traditional façade systems in terms of long-term durability?

When comparing a metal curtain wall system with traditional façade systems (masonry, EIFS, or load-bearing cladding), long-term durability is driven by materials, detailing, maintenance regimes, and exposure conditions. Metal curtain walls—constructed from high-grade aluminum alloys, stainless steel anchors, and engineered glazing—offer excellent durability when properly specified for local climates found across the Middle East and Central Asia. Unlike masonry, which can suffer mortar joint erosion and differential settlement, a well-designed metal curtain wall isolates weather loads through sealed joints, pressure-equalization, and controlled drainage, reducing water infiltration risk and freeze-thaw damage which is particularly relevant in higher-altitude Central Asian cities. Metal finishes (anodizing, high-performance fluoropolymer PVDF coatings) provide UV resistance and color retention in intense desert sun; specifying appropriate pretreatments for coastal or saline environments is essential to prevent corrosion. Routine maintenance—gasket replacement, sealant renewal, and periodic cleaning to remove salt or sand deposits—prolongs service life and is typically simpler and less invasive than the repointing or heavy repair cycles required for traditional façades. Life-cycle cost analyses often show that while initial capital cost for a high-quality unitized metal curtain wall may be higher than some traditional options, lower ongoing maintenance, better thermal performance, and longer service intervals make metal curtain walls a competitive long-term investment for commercial developments in Dubai, Doha, Baku or Almaty.