What factors determine whether a curtain wall system is suitable for renovation versus new construction projects?

Deciding whether to use a metal curtain wall system for renovation versus new construction depends on structural compatibility, existing façade condition, and project objectives. For renovation, assess the structural capacity of the building to support additional façade loads and connection types; older structures may require reinforcement or independent support systems to accommodate unitized panels. Interface details—slab edges, parapets, and window openings—determine the complexity of integrating a curtain wall into an existing envelope. In many façade retrofit scenarios, lightweight metal curtain wall systems can modernize aesthetics, improve thermal performance and reduce maintenance; however, on-site tolerances and phased occupancy constraints may favor stick-built approaches or hybrid systems. New construction allows for optimal integration of cast-in anchors, planned movement joints and coordinated mechanical systems, often reducing installation cost and schedule risk. For projects in the Middle East and Central Asia, logistics, labor availability, and local code requirements influence whether a unitized metal curtain wall is the best route. A thorough feasibility study—including structural review, cost comparison, schedule analysis and mock-up evaluation—guides whether a curtain wall system is the most appropriate solution for renovation or new build.