What Is a Stick Built Curtain Wall System?

A stick built curtain wall system is a non-load-bearing exterior façade assembled from individual vertical mullions, horizontal transoms, glass or opaque infill panels, gaskets, pressure plates, and cover caps at the building site. I use the term “stick built” because the main framing members are delivered as separate components and installed piece by piece rather than as fully assembled factory-made panels. The system transfers its own weight and environmental loads to the building structure, but it is not designed to support floor slabs or primary structural loads.

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For B2B buyers, the most important point is that a stick system offers flexible site assembly and practical customization, especially for low- to mid-rise commercial buildings, institutional projects, and façades with varied dimensions. Its suitability depends on wind pressure, building movement, thermal performance, drainage design, installation access, and local code requirements. I recommend evaluating the complete engineered system rather than selecting profiles or glass in isolation.

How a Stick Built Curtain Wall System Works

A typical system begins with vertical aluminum mullions anchored to the building structure at each floor or at designated support points. Horizontal transoms connect the mullions and create individual glazing or panel bays. Glass, spandrel panels, metal panels, louvers, or other infill materials are then installed into these framed openings using gaskets, setting blocks, pressure plates, and exterior caps.

The curtain wall forms a weather-resistant building envelope through several coordinated functions. Exterior seals help limit air and water penetration, while internal drainage paths guide incidental moisture toward designed outlets. Thermal breaks and insulated glass units can reduce heat transfer, although the final performance depends on the complete assembly, interfaces, workmanship, and project conditions.

Basic Components

• Vertical mullions: Primary framing members that receive wind loads and transfer them to structural anchors.
• Horizontal transoms: Members that divide the façade into bays and support infill materials.
• Anchors and brackets: Connections that accommodate installation tolerances and transfer loads to the structure.
• Glass or opaque infill: Commonly insulated glass, laminated glass, spandrel glass, metal panels, stone panels, or other approved materials.
• Gaskets and sealants: Components used to control air, water, and movement at joints.
• Pressure plates and cover caps: Exterior retention and finishing elements in many mechanically captured systems.
• Thermal breaks and drainage paths: Features that support thermal separation and moisture management.

Where Is a Stick Curtain Wall Used?

I commonly see stick built curtain wall systems considered for office buildings, schools, hospitals, retail façades, hotels, transportation facilities, and mixed-use developments. They are particularly practical when the façade includes many different opening sizes or when the site team needs to adjust installation around actual structural conditions. They may also be suitable for renovation work where access, transportation, or existing-building constraints make large prefabricated units difficult to handle.

Building height is an important consideration, but it is not the only one. A project with a simple repetitive façade may favor factory-assembled units, while a project with irregular geometry may benefit from component-based installation. For taller buildings, high wind zones, or demanding movement conditions, I would expect the design team to perform detailed structural, thermal, air, and water evaluations before confirming the system type.

Typical Application Scenarios

• Low- and mid-rise commercial buildings with repetitive or moderately varied elevations.
• Education and healthcare projects requiring controlled daylight and opaque spandrel zones.
• Retail and hospitality façades where visual customization is important.
• Renovation projects with restricted transport routes or limited lifting capacity.
• Projects that require a combination of glass, metal panels, louvers, and architectural features.

Types and Material Options

Most stick systems use aluminum because it provides a practical balance of low weight, corrosion resistance, machinability, and finish flexibility. The aluminum may receive anodized or painted finishes selected according to the project specification and environmental exposure. I do not treat one finish as universally superior; the correct choice depends on appearance, maintenance expectations, coastal exposure, chemical exposure, and the applicable finish requirements.

Infill choices can include monolithic glass, insulated glass units, laminated safety glass, fire-rated elements where specifically engineered, spandrel glass, aluminum panels, and other façade materials. Glass selection affects daylight, solar control, acoustics, safety, and thermal performance. The framing, glass, gaskets, sealants, and interfaces should therefore be reviewed as one performance assembly.

Stick System Compared with Other Façade Approaches

Compared with a unitized curtain wall, a stick built system is assembled mainly on site, while a unitized system generally arrives as larger factory-assembled panels. Stick systems can offer easier adjustment for nonstandard dimensions and may require less specialized panel transport. Unitized systems may provide greater factory control and faster repetitive installation on suitable high-rise projects, but they require careful logistics, panel coordination, and compatible building geometry.

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A stick curtain wall is also different from window wall. Curtain wall typically spans across the exterior face of the building and is supported at structural points, whereas window wall is often installed between floor slabs and may be integrated more directly with the perimeter slab edge. The correct comparison should include fire performance, movement accommodation, thermal continuity, drainage, installation sequence, and interface details rather than appearance alone.

Key Specifications Buyers Should Review

There is no single standard dimension or performance value that applies to every stick built curtain wall. As early planning references, a project may use a module near 1.2 meters wide or a floor-to-floor height near 3.6 meters, but these are design examples, not universal limits. Mullion depth, glass thickness, anchor spacing, and transom arrangement must be confirmed through project-specific engineering.

Buyers should ask for documented design values for wind load, air leakage, water penetration, structural movement, thermal transmittance, condensation resistance, acoustic performance, and glass safety. For example, the design team may specify an allowable interstory movement of 25 millimeters, but the required value must come from the building structure and local project criteria. I recommend requesting the calculation basis, test scope, and interface assumptions instead of relying only on a product brochure.

Specification Checklist

How Buyers Should Select a Stick Built Curtain Wall

I suggest starting with the building geometry and performance brief rather than with a preferred profile. Confirm the elevation grid, floor heights, structural support points, opening sizes, glass make-up, opaque zones, and façade interfaces. Then review whether the system can accommodate expected construction tolerances and movement without creating weak points at corners, slab edges, parapets, and transitions.

Cost should be evaluated as a complete installed solution. A component-based system may have practical material and transport advantages, but on-site labor, access equipment, weather protection, sealant work, inspection, and schedule risk also influence the total project cost. Ask suppliers to separate material scope, accessory scope, engineering scope, packaging, delivery, and installation assumptions so that quotations can be compared fairly.

Common Selection Mistakes

• Choosing mullion dimensions before confirming wind load and span requirements.
• Comparing glass prices without reviewing thermal, solar, acoustic, and safety requirements.
• Ignoring slab-edge tolerances and the movement between adjacent building floors.
• Assuming a standard gasket or sealant is suitable for every climate and interface.
• Evaluating unit price without considering installation labor, packaging, and site logistics.

How Jangho Can Support Your Project

At Jangho, we approach a stick built curtain wall as a coordinated façade solution rather than a collection of disconnected aluminum parts. Our support can include preliminary system selection, profile and infill coordination, shop drawing development, material scheduling, packaging planning, and export-oriented communication. The exact scope should be defined according to the project drawings, specification, location, procurement model, and required delivery terms.

For an initial technical review, I recommend sending the elevation drawings, typical wall sections, floor-to-floor heights, design wind criteria, glass requirements, finish requirements, estimated quantity, and target delivery schedule. With this information, our team can identify the main design interfaces and clarify which items require project-specific engineering or approval. We can also help buyers organize a quotation package that reduces ambiguity between façade supply and site installation responsibilities.

Key Takeaways

A stick built curtain wall system is a site-assembled, non-load-bearing façade made from separate mullions, transoms, infill panels, seals, and accessories. It is often considered for projects that need flexible dimensions, varied façade layouts, or practical component-based delivery. Its performance depends on engineered load paths, drainage, sealing, thermal continuity, movement accommodation, suitable infill, and disciplined installation.

For a reliable purchasing decision, first confirm the project’s structural and envelope criteria, then compare the system with unitized curtain wall and window wall based on geometry, height, logistics, labor, and performance requirements. The next step is to prepare a complete technical inquiry with drawings and measurable criteria. Contact Jangho with your project information so we can review the application, recommend a suitable stick built curtain wall configuration, and develop a clear B2B supply proposal.

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