Unitized Curtain Wall System Featured Image

Unitized Curtain Wall System

Factory-assembled facade units for mid- and high-rise construction: glazed, framed, and sealed in a controlled plant, then shipped as complete panels for floor-by-floor installation.

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What APEX Manufactures Under This System

APEX fabricates unitized panels with BIM/FEA modeling used to shape mullion and transom design around wind, thermal, and seismic movement before extrusion. Configurations include:

Cross-section of a glass curtain wall system showing metal frames and connectors supporting the glass sections
ConfigurationFrame TypeInfill OptionsEngineering Basis
High-rise unitizedConcealed frameGlass, aluminum panel, stoneBIM/FEA-modeled mullion & transom for wind, thermal, seismic movement
Hidden-frame unitizedFully concealed frameGlass, aluminum panelSame BIM/FEA engineering process
Channel-type embedded anchorUnitized, embedded anchor plateGlass, aluminum panel, stoneAnchor detail engineered to the embedded channel connection

Unitized vs. Stick-Built — Which Fits Your Project?

Unitized construction suits tall buildings with tight schedules, where factory glazing improves panel-level consistency and floor-by-floor installation reduces work at height. Stick-built systems remain practical for lower-rise buildings or irregular geometries where shipping large finished modules is difficult.

Compare the unitized and stick-built curtain wall systems and review the 2026 curtain wall cost breakdown before choosing.

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Request Project Specs

Tell us whether your project needs high-rise, hidden-frame, or channel-anchor unitized panels, and we'll return drawings and a quote sized to your floor plate and glazing spec.

FAQS

FAQ

What is the difference between a curtain wall and a window wall system?
Curtain walls span floor-to-floor as a continuous, non-structural skin anchored to the building frame. Window wall panels anchor to the slab edge at each floor instead, breaking the facade at every level rather than running past it as one plane.
What are the two types of curtain wall systems?
Stick-built systems are assembled piece-by-piece on site. Unitized systems are pre-assembled off-site and installed as complete panels. See the full comparison for how the two trade off on schedule and site labor.
What are the downsides of curtain walls?
Curtain walls require more upfront engineering and coordination between structure, glazing, and mechanical trades than simpler cladding. Long-term performance depends heavily on how well panel-to-panel joints and seals are detailed and installed.
What is a unitized façade system?
It's the same thing as a unitized curtain wall: panels fully fabricated, glazed, and sealed in a factory, then shipped and hoisted into place on the building as finished units rather than assembled on site.