Aluminium Curtain Wall Systems for Australian High-Rise Projects: Interfaces, Glazing and Delivery

When a tower rises above the street, its most visible element stops being the concrete core and becomes the envelope: the skin of glass and aluminium that separates a conditioned interior from the Australian climate. For high-rise offices, residential towers, and public buildings, that skin is usually an aluminium curtain wall system, and the decisions made around it ripple outward into structure, glazing, installation logistics, documentation, and decades of maintenance. This article explains how aluminium curtain wall systems work on Australian high-rise projects, how they coordinate with the rest of the building envelope, and where the BA150 product line from Meichen fits into that picture.

A curtain wall, in the simplest working definition, is an external cladding system that carries its own weight and transfers wind pressure, rain, and thermal movement to the building structure without carrying the weight of the building itself. It hangs on the primary structure the way a curtain hangs in front of a stage, which is where the name comes from. Everything else in this article — load paths, glazing, spandrels, transoms, mullions, movement joints, and interfaces with windows and doors — flows from that one idea, so it is useful to hold it in mind from the start.

What Is an Aluminium Curtain Wall System?

An aluminium curtain wall system is a non-load-bearing external façade assembled from extruded aluminium components. The structural skeleton of the wall consists of vertical members called mullions and horizontal members called transoms, and between them the wall is infilled with glass vision panels or opaque spandrel panels. The system is anchored to the primary structure — typically the floor slabs or columns — through base plates and fixings, so that its own mass, the wind loads it attracts, and the movement it undergoes are all handed over to the building. The curtain wall never carries gravity loads from floors or roofs, and the building structure never relies on the curtain wall for its stability. That separation of duties is the entire design logic of the system.

Aluminium is the dominant material for this application for several practical reasons. It is strong for its weight, which keeps the frame slim without sacrificing stiffness; it resists corrosion, which matters in coastal cities such as Sydney, Brisbane, and Perth; it extrudes into complex profiles with thermal breaks, drainage channels, and seal chambers built in; and it is fully recyclable, which aligns with the sustainability expectations of modern Australian construction. Because the frame does not carry the building’s gravity loads, designers can push the glass area very high across the façade, which is precisely what high-rise clients want: light, views, and a continuous visual surface from street to roof.

Why Curtain Walls Are Central to Australian High-Rise Construction

Wind, Rain, and Height

Wind pressure on a façade grows with height, so the upper floors of a tower experience the most demanding envelope conditions. Australian cities add their own character to that demand: coastal exposure, summer storms, strong directional winds channelled through street canyons, and, in some regions, the occasional hail event. A curtain wall must manage all of these while keeping the interior dry, quiet, and comfortable, and it must continue to do so for decades with only routine maintenance. The building envelope is therefore treated in Australian high-rise projects as a performance system, not a product purchase.

Meichen approaches the ANZ market on exactly these terms. The company has been dedicated to Australia and New Zealand since 2017, building on 18–19 years of industry expertise in high-performance, energy-efficient slim and silent aluminium window and door systems. Its commercial focus explicitly includes high-rise offices, retail complexes, and public buildings such as hospitals and schools, which is the sector where curtain wall systems do most of their work.

BA150: Meichen’s Curtain Wall Product Line

Within Meichen’s catalogue, curtain walls are classed as a specialised solution, and the BA150 series is the named product line in that category. It is worth being precise about what a product line is and what it is not, because confusion here is one of the most common sources of specification error in façade procurement.

Where BA150 Sits in the Meichen Range

Meichen organises its range into several families. The ultra slim frame systems include the SD205-AS960 sliding and stacker doors and the SLMA100-20 slim sliding window. The thermal break systems include the MC140 sliding door, the MC100 series in awning, fixed, tilt and turn, and double hung configurations, and the MA73 bi-fold door with no mullion. The non-thermal break systems include the MD150 series and the ApexAwning 100/150-AS960. The specialised solutions are where the BA150 curtain wall series sits, alongside louvres, balustrades, and shower enclosures. The practical significance for a high-rise project is that the curtain wall and the building’s windows and doors can come from one coordinated supplier’s system, which matters when the two parts of the envelope must behave as one.

How to Interpret BA150 in a Project Context

The BA150 designation identifies a curtain wall product line within Meichen’s range; it does not, by itself, specify the dimensions, load ratings, or fire performance of any particular installation. Every curtain wall project is dimensioned and verified for its own site, its own structural system, and its own loading regime, and the project-specific data sheets, engineering calculations, and test reports for that installation are the controlling documents. A procurement team should therefore treat BA150 as the starting point of an engineering conversation, not as a finished set of ratings. That discipline protects the project: catalogue descriptions define what a system family is, while project documentation defines what will actually be built.

Facade Load-Path Coordination on High-Rise Projects

The first engineering question on any high-rise façade is not aesthetics — it is where the loads go. A curtain wall collects wind pressure and suction across its whole surface, plus its own dead weight, plus the dynamic loads from opening and closing, and every one of those loads must travel along a continuous, documented path to the primary structure. Break the path at any point — a missing base plate detail, an incompatible anchor, a spandrel that cannot transfer shear — and the wall will leak, distort, or worse.

How Loads Travel From Glass to Structure

In a typical aluminium curtain wall, the glass is held by pressure plates or a bed-and-pressure-plate arrangement that transfers panel loads to the transoms and mullions. The mullions carry vertical loads downward and lateral wind loads to their base plates at each floor. The base plates, in turn, anchor the wall to the slab edge or column, often with a degree of adjustability so the frame can be set true despite construction tolerances. Transoms carry the horizontal subdivision of the wall and the loads of the glass and spandrel panels between mullion lines. The whole assembly is designed so that load flow is obvious, reversible in maintenance, and free of unintended short-circuits. Designers check deflections carefully, because excessive frame movement distorts seal lines and can crack glass, even when no load is permanently exceeded.

Engineering Coordination Between Façade, Structure, and Glazing

Load-path coordination is a team sport between the façade engineer, the structural engineer, and the glazing supplier, and it happens early. The façade team needs to know what the structure will tolerate at anchor points: shear, tension, and the movement it will undergo over the life of the building. The structural team needs to know what the façade will deliver: wind pressures and suctions, including corner and roof-edge effects that are higher than mid-wall values, plus the weight of the system. The glazing team needs to know the span, the pressure difference the glass will see, and the movement it must accommodate. When those three conversations are documented and mutually consistent, the curtain wall behaves; when they happen late, the project pays for it in change orders and site variations. For Meichen-supplied façades, this coordination is supported by the company’s dedicated ANZ hardware development — over ten years of experience working to Australian and New Zealand requirements — and by its engineering and testing relationships with bodies including BV, CSI, NATA, AZUMA, and INTERTEK.

Glazing for Curtain Walls

Unitised, Stick, and Hybrid Approaches

Curtain walls are generally erected in one of three ways. In a stick system, mullions and transoms are assembled on site into the primary frame, and glass is set and gasketed into the grid as the wall progresses. In a unitised system, the wall leaves the factory as completed modules — frame and glass already joined — which are lifted, placed, and anchored to the structure, with adjacent units joined by sealant or gasketed connections. Hybrid systems mix both: unitised panels in the regular vision and spandrel areas, stick-built elements around irregular openings, plant penetrations, and transitions. The choice depends on the building geometry, the site logistics, the crane regime, and the weather risk. Whatever the approach, the glazing is designed as a system component: pane type, thickness, lamination, and coating are selected to match the span, the loads, and the performance targets of the whole wall.

Glass Selection Under AS 1288 and AS 2208

Glass in a curtain wall is governed in Australia by the same safety-glazing framework that governs windows. AS 1288 sets out how glass is selected and used safely in buildings — which glass types are acceptable in which locations, and what performance they must provide. AS 2208 covers the safety glazing used in buildings, including the treatment and application of toughened and laminated glass. In a high-rise curtain wall these standards drive decisions such as using laminated glass where a pane could fall onto a public path, specifying toughening where the strength demands of large vision lights call for it, and ensuring that glazing near openings, at pedestrian level, and in emergency-escape locations behaves safely under impact. Meichen’s product programme is certified to AS 1288 as part of its Australian standards framework, which brings a tested, documented approach to the glazing side of the façade as well as the framing side.

Meichen’s Glazing Supply Chain

Glazing quality is only as good as the glass behind it. Meichen sources glass from CSG, China Southern Glass, a manufacturer with 42 years of experience and automated production lines, and aluminium from AAG, China’s largest aluminium production base, with 37 years of experience. This vertically aligned supply chain matters for a curtain wall project because it gives the supplier control over glass quality, lead times, and the ability to specify double or triple glazed units with Low-E coatings — the kind of insulated glazing that thermal break façade systems are designed around. For the project team, the practical benefit is fewer interfaces: one accountable supplier for frame, glazing, and hardware rather than three separate packages that must be reconciled on site.

Spandrels, Transoms, and Mullions

Mullions: The Vertical Backbone

Mullions are the primary vertical members of a curtain wall. Each mullion line runs continuously — or in designed breaks — from the base of the building to the top, and at every floor it meets a base plate that hands the load to the structure. Mullion design is where most of the engineering content of a curtain wall lives: the profile must resist lateral wind load as a vertical beam, transfer the dead load of the wall, accommodate thermal expansion, house or run alongside the drainage path, and present a consistent face that the glazing and spandrel panels align to. Slimness is a constant tension with depth: a slimmer mullion looks better and admits more glass, but a deeper mullion resists deflection better over a tall floor height. The balance is struck per project, and it is one reason curtain walls are engineered as systems rather than catalogued as fixed products.

Transoms and the Horizontal Grid

Transoms are the horizontal members that subdivide the wall at each floor line and, within the vision zone, at intermediate heights where the client wants a stronger rhythm or a place to locate spandrel edges. They complete the grid that the glass and spandrel panels fill, and they carry the transverse load path: wind pressure from a panel into the transom, into the mullions, and down to the anchors. Transom depth and detailing are driven by the floor height, the glass span above and below, and the movement the transom must accommodate as the building sways and the aluminium expands. In thermal break designs, transoms also host part of the break strategy, because the horizontal lines of the grid are often the weakest path for heat transfer if they are not carefully detailed.

Spandrel Panels and the Floor-to-Floor Envelope

The spandrel zone covers the floor band — the slab edge, the structure behind it, and the mechanical services that run along it — so that the façade reads as continuous glass rather than a series of horizontal shadows. Spandrel panels come in two broad families: opaque spandrels, which are metal or composite panels painted to match the vision glass, and glass spandrels, where a laminated glass unit is faced with a ceramic or external coating so the panel reads dark from outside while shading the slab edge from inside. The spandrel is not decorative: it is a load-bearing part of the wall grid, it participates in the water and air barrier, and its movement detailing must be at least as good as the vision glazing. When spandrel and vision zones are treated as one continuous system, the façade performs as one skin; when they are treated as two separate trades, the joint between them becomes the project’s most leak-prone line.

Weather Management: Water, Air, and Wind

Drainage, Sealing, and Redundancy

No façade is completely sealed, and the best curtain walls are designed not to depend on complete sealing. The standard approach is a combination of barriers: a primary seal at the outer joint, a cavity behind it that may be pressure-equalised or drained, weep holes that let any water that penetrates the primary seal exit back to the exterior, and secondary seals that protect the structure and the interior. Drainage paths are sized and detailed so that water can move through the system under wind-driven pressure and escape without finding a route into the structure. This layered, redundant philosophy is what allows a curtain wall to survive decades of weather: the system is designed for the day the seal gets old and the water gets in.

Sealing and Air Tightness

Air management is the quieter half of weather performance. Air leakage through a curtain wall affects energy use, comfort, and acoustic performance, and it is controlled by gasket design, sealant joints, and the precision with which the frame is set on site. A well-designed curtain wall keeps air movement through the envelope to a controlled minimum across the whole building height, which matters doubly in a tall building where stack effects can drive significant air movement through any leakage path. Meichen’s product programme is noted for excellent sealing, specifically cited in support of acoustic and thermal insulation, and that air-tightness discipline carries directly into the design of its curtain wall systems.

Verified Performance Under AS 4284

AS 4284 is the Australian testing framework that quantifies exactly the three weather demands described above: water penetration resistance, air leakage, and wind load response. Testing to that framework is how a façade system earns its performance claims in an Australian project, and it is where a supplier’s track record shows. Meichen’s tested product programme has demonstrated water tightness of up to 960 Pa under AS 4284 — a level the company has cited as setting industry benchmarks — alongside high wind load resistance suited to high-rise developments. A specific BA150 installation will of course be verified against its own configuration, spans, and site loading, but the programme-level record tells the project team what the system family is capable of before any site-specific engineering begins.

Movement Joints and Building Tolerance

Thermal Expansion and Differential Movement

Aluminium expands and contracts noticeably over a temperature range, and a building is not a single temperature: the façade, the structure, and the interior move at different rates, in different directions, and by different amounts. A curtain wall therefore includes movement joints at every point where it meets a different material or a different movement regime: at the roof, at the podium, at the core, and wherever a wing meets a tower. These joints are not gaps left by construction error; they are engineered details with sealants, gaskets, or sliding connections sized for the movement the design predicts. Getting them right is what keeps a fifty-year-old curtain wall from telegraphing the building’s movement as cracked sealant and distorted glass.

Seismic and Long-Term Movement in the ANZ Context

New Zealand adds a further demand that is less common in Australian projects: seismic movement. In seismic regions the façade must accommodate significant horizontal displacement without failing, which drives joint design, anchor flexibility, and the restraint strategy for glass and spandrel panels. Meichen’s New Zealand product lines are certified to SNZ TS 4211:2022 and SNZ 4223 — thirteen product lines in total — which gives NZ project teams a documented, certified starting point for seismic and weather performance in the window and door portion of the envelope, with the curtain wall portion engineered and verified against the project’s own seismic and structural requirements.

Thermal and Acoustic Boundaries

Thermal Break Design and Glazing Performance

In an aluminium curtain wall, the frame is the thermal weak point: aluminium conducts heat readily, and a continuous metal frame from the inside surface to the outside surface becomes a bridge for heat loss in winter and heat gain in summer. The solution is the thermal break — a non-conducting element, typically a polyamide strip, that interrupts the metal path across the profile. Meichen’s thermal break systems are designed around this principle and are paired with double or triple glazing using Low-E coatings, which keeps the heat in during the heating season and reflects solar gain back out in the cooling season. The result is a façade that contributes to the building’s energy performance rather than working against it. For the design team, the thermal strategy is set by the project’s energy targets and the climate zone; the system family is then specified and verified to deliver those targets in the as-built configuration.

Acoustic Control for Dense Urban Environments

High-rise buildings in Australian capital cities stand in dense acoustic environments: traffic, rail, aircraft approach paths, and commercial activity. A curtain wall’s acoustic performance is the combined result of the glazing units, the frame sealing, and the airtightness of the whole envelope, because airborne sound follows air movement. Slim profiles and high glass areas push acoustic performance in two directions at once — the glass area is large, but the frame and seals must be tight. Meichen’s stated specialisation is high-performance, slim and silent aluminium window and door systems, and the same engineering discipline that drives that slimness-without-noise is applied to the curtain wall envelope: careful seal design, consistent gasket contact, and glazing specified to the acoustic demands of the location. As with thermal performance, the target level is set per project and verified for the as-built configuration.

Interfaces With Windows and Doors

Why the Envelope Must Be Designed as One System

A high-rise façade is rarely one continuous curtain wall. It includes openable windows for ventilation, door entries at podium and lobby levels, plant openings, and transitions to brickwork, stone, or metal panels. Each interface is a place where two systems with different movement, different load paths, and different water strategies meet. If they are specified as separate products from separate suppliers, the interface is negotiated late and resolved on site, often with site-built transitions that are harder to maintain than either system was. If they are designed as one envelope — one façade strategy across the curtain wall, the windows, and the doors — the interfaces are detailed in shop drawings before anything is manufactured, and the water and air barriers stay continuous across them.

Coordinated Product Ranges From a Single Supplier

This is where Meichen’s full range becomes a practical asset for a high-rise project. The same supplier can provide the BA150 curtain wall system and the building’s windows and doors: the MC100 series in fixed, awning, tilt and turn, and double hung configurations; the MC140 sliding door; the MD150 series; the SLMA100-20 slim sliding window; the ApexAwning 100/150-AS960; the MA73 bi-fold door with no mullion; and the SD205-AS960 sliding and stacker doors. Forty-three Meichen product series are certified under the Australian standards framework, and thirteen product lines carry New Zealand certification. The benefits of single-supplier coordination are concrete: compatible profile systems, shared hardware language, consistent sealant and gasket chemistry, one documentation package, and one point of accountability when the curtain wall meets the window wall at a transition. For a high-rise project with a complex, mixed façade, that single accountability is often worth more than any individual line item on the schedule of rates.

High-Rise Installation Sequencing

Pre-Installation: Mock-ups, Shop Drawings, and Logistics

Installation of a high-rise curtain wall begins long before the first mullion is lifted. The sequence starts with shop drawings that resolve every anchor, every joint, and every interface with the structure and with adjacent envelope systems. A mock-up of the wall is then erected and tested — to the project’s specification, typically covering water, air, and wind performance — so that the design is proven before the whole building is clad. In parallel, logistics are planned: crane capacity and lifts per hour, panel storage on a high-rise site, scaffold or tower-climb access, and the survey control that will keep the wall true over tens of floors. For Meichen-supplied projects, this phase is backed by the company’s 20,000 square metre manufacturing facility and its supply chain relationships, which allow panel production to be scheduled against the site’s installation programme rather than the reverse.

Erection: From Base to Top

On site, a stick-built wall begins with the mullion base plates at the lowest floor, set to survey and checked for alignment, with each plate carrying the load path described earlier. Mullions are erected and adjusted within their designed tolerance bands, then transoms are installed to complete the grid. Glass and spandrel panels are set as the grid passes them, with the weather barrier closed as quickly as practicable so the building interior can follow the enclosure. In a unitised system the sequence is panel by panel: each module is lifted, seated, anchored, and sealed to its neighbours, and the wall’s weather performance is achieved module by module rather than grid by grid. In either case, the sequence is driven by one rule: the building is enclosed as fast as the structure is ready, and the enclosure is kept as continuous as the weather allows.

Weather Protocols and Phasing

High-rise façade work lives or dies by its weather protocol. Before panels or glass are set, the team agrees on wind speed limits for lifting, on the wet-weather procedure for open cavities, and on the temporary protection that keeps water out of an unfinished wall between trades. Phasing follows the structure floor by floor, typically from the top of the last completed floor downward or upward depending on the system and the crane regime, so that the interface between finished wall and exposed structure is always short. Daily inspections of gaskets, sealant, and drainage are part of the programme, not an afterthought, because a defect found on the 40th floor during erection costs a fraction of what the same defect costs on day one of occupancy.

Documentation, Standards, and Compliance

NCC and ABCB: The Regulatory Frame

In Australia, the regulatory frame for the building envelope is the National Construction Code, maintained by the Australian Building Codes Board (ABCB). The NCC sets the minimum requirements a building must meet, and for a façade those requirements span weatherproofness, structural adequacy, fire safety, and energy performance, expressed through the building envelope provisions for both residential and commercial buildings and through the overarching performance requirements that apply to every building. The NCC does not name products; it sets performance. That is why the curtain wall’s project documentation — the calculations, the mock-up test reports, the specifications — is the mechanism by which the building demonstrates compliance: the code sets the bar, and the documented, tested system meets it. Meichen is actively pursuing CodeMark certification, the highest level of certification recognition in Australia, and its programme is built on that expectation of compliance.

The Australian Standards Framework: AS 2047, AS 4284, AS 1288, AS 4666, and AS 2208

Five Australian standards anchor the window, door, and glazing side of the façade, and together they define how a system is specified, tested, glazed, installed, and made safe:

AS 2047 — Specification of windows and doors: the specification standard that defines how window and door products are to be specified, graded, and assessed.
AS 4284 — Performance of windows (testing): the testing framework for water penetration, air leakage, and wind load response, and the standard against which Meichen’s tested product programme has demonstrated water tightness up to 960 Pa and high wind load resistance.
AS 1288 — Safety glass in buildings: the standard governing how glass is selected and used safely in buildings, including the requirements for vision and spandrel glazing in a curtain wall.
AS 4666 — Installation of windows and doors: the installation standard, which matters for every openable element in the façade and for the interfaces where curtain wall meets window wall.
AS 2208 — Safety glazing: the standard covering safety glazing in buildings, including toughened and laminated glass and their application.

Meichen’s 43 certified product series in Australia are built against this framework. For the curtain wall itself, the same standards inform the glazing, the openable elements, and the performance testing, while the project’s own specification and engineering close the loop on the structural and movement requirements that are specific to the building.

New Zealand Labels: SNZ TS 4211:2022 and SNZ 4223

For projects in New Zealand, the relevant labels are SNZ TS 4211:2022 and SNZ 4223. Meichen holds certification to both, with thirteen product lines certified in New Zealand. For a high-rise or commercial project in NZ, that certified status gives the design team a documented baseline for the window and door portion of the envelope under the New Zealand framework, with the curtain wall portion specified, engineered, and tested against the project’s own requirements — including seismic movement, which is a first-class design input in NZ practice rather than a secondary check.

The Project Documentation Package

A complete curtain wall documentation package for an Australian high-rise project typically includes: shop drawings covering every anchor, joint, and interface; engineering calculations for structure, loads, and movement; mock-up and test reports under the AS 4284 framework; glazing schedules and safety-glazing selection per AS 1288 and AS 2208; installation instructions consistent with AS 4666 for the openable elements; warranties and maintenance manuals; and, for NZ work, the applicable SNZ certification documentation. For the building’s compliance file, the package is the evidence that the envelope meets the NCC, and for the owner, it is the manual for keeping the building’s skin performing for decades.

Delivery, Maintenance, and Long-Term Performance

From a 20,000 Square Metre Facility to Australian Sites

Delivery is a design input, not an afterthought, and Meichen’s manufacturing base is sized to the scale of ANZ commercial projects. The company operates a 20,000 square metre advanced manufacturing facility based in Zhaoqing, Guangdong, China, with local partnerships in Sydney supporting the Australian market — a structure that combines factory scale with local presence. Its supply chain is anchored by AAG for aluminium and CSG for glass, both long-established manufacturers, and by dedicated ANZ hardware developed over more than a decade to Australian and New Zealand requirements. For a high-rise project, that combination translates into scheduled production against the installation programme, coordinated shipping, and a hardware set that does not need to be re-engineered for the market.

Ongoing Maintenance and Requalification

A curtain wall is a maintained system. The routine programme is simple to state and important to execute: periodic inspection of the façade by rope access or cherry picker, checking gaskets and sealant for age and movement, clearing weep holes and drainage paths of debris, inspecting and adjusting hardware on openable elements, and checking the condition of glass and spandrel panels. After any impact event — hail, a strike, or a repair to the structure — the affected area is requalified: inspected, repaired, and retested where the event has compromised the tested performance. The maintenance manual that ships with the system documents all of this, and a façade that is maintained on schedule will keep its weather, thermal, and acoustic performance for the design life of the building, while a neglected one will quietly lose it.

FAQ: Aluminium Curtain Wall Systems for Australian High-Rise Projects

What is the difference between a curtain wall and a conventional window wall?

A conventional window wall is a masonry or structural wall with windows set into it; the wall carries the building’s loads and the windows are infill. A curtain wall is the opposite arrangement: a separate external skin that carries only its own weight and environmental loads, anchored to the structure, with the building’s gravity loads carried entirely by the structure behind it. That separation is what allows the near-continuous glass façades of modern high-rise buildings.

What is BA150, and who makes it?

BA150 is the curtain wall product line in Meichen’s specialised solutions category. Meichen is an ANZ-focused manufacturer of high-performance aluminium window and door systems, dedicated to Australia and New Zealand since 2017, with 18–19 years of industry expertise. BA150 is the line within that range designated for curtain wall applications, and each installation is engineered and verified to its own project specification.

Which Australian standards apply to a curtain wall project?

The NCC, maintained by the ABCB, sets the performance requirements the building must meet. On the products and glazing side, the key standards are AS 2047 (specification of windows and doors), AS 4284 (performance testing for water, air, and wind), AS 1288 (safety glass in buildings), AS 2208 (safety glazing), and AS 4666 (installation of windows and doors). The project specification and engineering then tie those standards to the specific building.

Has Meichen’s product programme been tested to AS 4284?

Yes. Meichen’s tested product programme has demonstrated water tightness of up to 960 Pa under AS 4284, high wind load resistance suited to high-rise developments, and excellent air tightness. A particular installation is verified against its own configuration and site loading through the project’s mock-up and test programme.

Can Meichen supply curtain walls for New Zealand projects?

Meichen is dedicated to the ANZ market, and thirteen of its product lines are certified in New Zealand to SNZ TS 4211:2022 and SNZ 4223. For NZ high-rise and commercial projects, the window and door portion of the envelope can be specified from that certified range, with the curtain wall engineered to the project’s own requirements, including seismic movement.

How is a curtain wall installed on a high-rise building?

Installation follows a defined sequence: shop drawings and mock-up testing first, then base plates and mullions (or unitised panels, depending on the system), transoms and glazing as the grid passes, and continuous weather-tight closure of the building as each phase completes. The programme is driven by crane capacity, weather protocols, and the floor-by-floor readiness of the structure, with daily inspection of seals and drainage throughout.

How do you maintain an aluminium curtain wall?

Periodic inspection by rope access or lift, checking gaskets, sealant, weep holes, and hardware; cleaning and clearing drainage paths; adjusting openable elements; and requalifying any area after impact or structural repair. The system ships with a maintenance manual that documents the programme, and a maintained façade keeps its tested weather, thermal, and acoustic performance for the life of the building.

Conclusion

An aluminium curtain wall system is the building’s primary interface with the climate, and on an Australian high-rise it carries demands that a window wall never sees: full-height load paths, wind and rain at altitude, movement over decades, and a façade that must stay dry, quiet, and energy-efficient while reading as a continuous surface of glass. The BA150 series is Meichen’s curtain wall product line, and it is offered the way a serious façade line should be — as the starting point of an engineered, tested, and documented system rather than as a fixed set of ratings. Meichen’s position in the ANZ market is built for exactly this work: a focus on Australia and New Zealand since 2017 on the back of 18–19 years of expertise, a 20,000 square metre manufacturing facility, a supply chain anchored by AAG aluminium and CSG glass, 43 product series certified against the Australian standards framework including AS 2047, AS 4284, AS 1288, AS 4666, and AS 2208, thirteen product lines certified in New Zealand to SNZ TS 4211:2022 and SNZ 4223, and active pursuit of CodeMark. For project teams, the practical takeaway is that a curtain wall is a system decision — load path, glazing, spandrel, weather, movement, and interfaces designed as one — and that the supplier’s value shows in how well that system is coordinated, tested, documented, and maintained over the life of the building. For more information on Meichen’s curtain wall and window systems for the Australian and New Zealand markets, visit mcwindow.com.au.