How does a unitized Curtain Wall compare with stick built systems in real projects

Unitized and stick-built curtain wall systems each have distinct advantages that suit different project constraints. Unitized systems are factory-assembled modules—glazing and frames pre-installed into sealed panel units—delivered to site for rapid craning into place. This approach offers superior factory quality control, tighter tolerances, better thermal and acoustic performance due to factory sealing, and dramatically shorter on-site erection time—beneficial for high-rise or occupied building projects where minimizing site disruption is critical. Unitized systems can reduce weather exposure risk during installation and improve schedule predictability, although they typically carry higher upfront fabrication and transportation costs and require careful logistics planning for large panels. Stick-built systems—assembled mullion-by-mullion on site—provide flexibility to adapt to as-built tolerances, phased construction and projects with limited crane capacity or narrow access. They often have lower initial material handling costs and can be more economical on low-rise or irregular façades, but require longer site labor duration and greater reliance on installer skill for sealing and alignment. Performance differences narrow as workmanship and system design improve, yet unitized solutions generally provide more consistent factory-tested performance. Choice should be driven by schedule, site logistics, façade complexity, budget and quality expectations. For comparative case studies and system capabilities, review https://prancedesign.com/curtain-wall-advantages-disadvantages-guide/.