In brief
Unitized systems arrive as factory-assembled modules while stick systems are assembled on site; the choice depends on repetition, height, logistics, and site constraints.
Unitized
Factory-assembled modules support quality and speed on repetitive towers, with careful logistics, lifting, and stack-joint planning.
Stick
Site-assembled mullions and transoms offer geometric flexibility but rely more heavily on field workmanship and weather conditions.
Decision factors
No system is universally best. Compare height, geometry, repetition, storage, cranes, schedule, and budget together.
Impact on design and site
The choice affects joint sizes, tolerances, lifting points, and water testing, so structural, fabrication, and installation teams should review it together early.
General guidance for product selection. Specifications and engineering details must be verified against each project's drawings and standards.
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