Stick-Built vs Unitized Façade Systems: Which Works Best for High-Rise Projects?
Selecting the right façade system shapes your project’s performance, cost and timelines. At Accend Aluminium & Glass (2AG), we help developers compare stick-built and unitized curtain wall systems so they choose the perfect match. Below, we explain how the two systems differ and when each works best.
What Is a Stick-Built Curtain Wall?
A stick-built façade uses aluminium mullions and transoms assembled directly on site. Installers mount vertical and horizontal sticks first. They then insert glazing and seal joints.
Because work happens on site, installers adjust easily to irregular shapes and architectural variations.
Learn more:
➤ https://2ag.co.za/projects/
➤ https://2ag.co.za/aluminium-windows/
What Is a Unitized Curtain Wall?
A unitized façade arrives as prefabricated modules. Factories assemble complete panels with framing, glazing and sealing under controlled conditions. Installers then lift these modules into position and attach them to the building anchors.
This approach speeds up installation and reduces weather-related delays.
Useful global reference:
➤ https://www.aluminium-facade.com/info/unitized-curtain-wall-becomes-top-choice-103171244.html
Installation Methods and Time Requirements
Stick-Built
Stick-built systems require more on-site labour. Work progresses floor-by-floor. Bad weather or space constraints slow crews, especially on tall structures.
Unitized
Unitized modules install far faster because most work happens in the factory. As a result, the building becomes weather-tight sooner and interior crews start earlier.
Check our solutions:
➤ https://2ag.co.za/curtain-walling/
Quality, Cost and Long-Term Benefits
Quality
Stick-built quality depends on weather and site conditions.
Unitized offers stronger uniformity because sealing and glazing happen in controlled facilities.
Cost
Stick-built often starts cheaper but extends project time. Unitized starts higher but delivers faster completion.
Maintenance
Stick-built systems allow easier replacement of isolated pieces.
Unitized systems provide high durability but require planning when swapping full modules.
Reference (global):
➤ https://girouxglass.com/common-types-of-curtain-wall-systems-in-modern-building-design/
Which System Fits Your High-Rise?
Stick-built suits complex shapes, small façades and projects with flexible timelines.
Unitized shines in high-rise towers, large façades and tight deadlines. Consistency in quality and performance gives it a strong advantage.
Why Choose Accend Aluminium & Glass (2AG)?
Accend Aluminium & Glass provides custom façade, glazing and aluminium solutions across Roodepoort, Randburg and wider Gauteng.
Explore our services:
➤ https://2ag.co.za/about-us/
➤ https://2ag.co.za/services/
➤ https://2ag.co.za/shop/smart-vent/
➤ https://2ag.co.za/aluminium-doors/
We guide architecture teams, assist with project planning and deliver façades that perform for decades.
Final Word
Both façade systems deliver value, but they excel in different situations.
For high-rise projects, unitized curtain walls usually offer better speed and quality control.
For smaller or highly customised structures, a stick-built façade may be the more practical option.
Contact 2AG to compare options for your building and receive tailored recommendations.