An aluminium curtain wall supplier offers systems for modern building envelopes. Curtain walls keep rain out and light in. They give a clean façade and thermal control.

Main system types

Suppliers usually offer several system types. Each system fits different project needs. Aluminium Curtain Wall Supplier can offer more different types for customers.

• Stick systems
• Unitized systems
• Semi-unitized systems
• Point-supported glass (structural glazing)
• Double-skin curtain walls

Stick system (modular extrusions)

Stick system features site-assembled mullions and transoms.
It is flexible for medium to large façades.

Item	Typical range
Module width	600–2400 mm
Glazing thickness	6–32 mm
Mullion depth	50–200 mm
Best for	Medium-rise buildings

Unitized system (factory-made units)

Unitized system uses factory-assembled panels.
Panels install quickly and give high quality control.

Item	Typical range
Unit width	1200–3600 mm
Unit height	1500–3600 mm
Typical joint	Vertical and horizontal interlocks
Best for	High-rise, tight schedules

Semi-unitized system

Semi-unitized mixes on-site assembly with factory units.
It reduces site time while keeping transport cost lower than full unitized panels.

Point-supported glass and spider fittings

This system uses fittings and patch plates.
It gives a frameless glass look for atriums and entrances.

Feature	Note
Support	Bolts, spiders, or tension cables
Visual effect	Minimal framing, glass-dominant
Use	Atriums, canopies, showrooms

Double-skin curtain wall

Double-skin has two layers of façade with a ventilated cavity.
It improves thermal control and acoustic performance.

Layer	Purpose
Outer skin	Weather barrier, solar control
Cavity	Ventilation, shading control
Inner skin	Thermal separation, air-tightness

Typical product families and types

A supplier lists product families. Each family contains variants for different jobs.

• Standard glazed curtain wall (visible mullion)
• Structural glazing (hidden mullion)
• Unitized panel with insulated spandrel
• Slim-profile curtain wall for slender appearance
• Fire-rated curtain wall for compartmentation
• Blast-resistant and security curtain walls

Small product table

Product family	Use case	Glazing / panel
Standard glazed	Office towers	Vision glass + spandrel panel
Structural glazing	Luxury retail	Flush glass face
Insulated unit	Cold rooms, labs	Double-glazed plus insulated spandrel
Slim profile	Aesthetics-first façades	Narrow mullions
Fire-rated	Fire-sensitive areas	Fire-resistant glass and framing

Alloys and material states

Aluminium alloys and tempers influence strength and formability. Suppliers choose alloys for extrusion, fabrication, and finish.

Alloy	Common state	Feature
6063	T5 / T6	Standard architectural extrusion. Good surface finish.
6061	T6	Higher strength. Good for structural members.
6005	T5/T6	Good for heavy-duty extrusions.
5052	H32	Good corrosion resistance for coastal use.
7075	T6	High strength, rarely used for façade due to cost

Notes on temper and state:

• T5: cooled then artificially aged. Good for consistent profile strength.
• T6: solution heat treated and aged. Higher strength for structural needs.
• H1x or H2x: strain-hardened tempers for some sheet applications.

Surface finishes and coatings

Finish choice affects appearance and durability. Suppliers offer several options.

Finish	Feature	Typical use
Anodized	Natural or colored, good corrosion resistance	Modern facades, coastal sites
PVDF / Kynar coil coat	High UV stability, wide color palette	Commercial façades, long warranty
Powder coat	Thick finish, many colors	Interior and exterior, textured options
Mill finish	Uncoated, economical	Hidden areas, internal framing
Fluoropolymer (PVDF)	2-coat or 3-coat systems	Premium durability and gloss retention

Additional options:

• Stucco embossing for hide scratches.
• Dual-color coating for coping and interior reveal.
• Anti-fingerprint and low-E coatings for glass.

Thermal break and insulation

Thermal breaks reduce heat and cold transfer through frames. Suppliers use polyamide and other materials.

Component	Typical material
Thermal break	Glass-filled polyamide (PA66)
Gasket material	EPDM rubber
Insulated spandrel	Mineral wool or PIR board
Glazing options	Double-glazed, triple-glazed, low-E coatings

Typical thermal values (approximate):

• Double-glazed unit U-value: 1.1–2.8 W/m²K (depends on glass and spacer)
• Curtain wall frame thermal transmittance: 0.8–2.5 W/m²K (depends on thermal break and profile)

Note: Actual U-values change by design, glass type, and climate zone. Ask the supplier for calculated U-values.

Glazing and panel options

The curtain wall accepts many infills.

• Single glazing for lightweight displays.
• Double glazing for thermal control.
• Triple glazing for high-performance façades.
• Insulated metal panels for opaque spandrels.
• Composite panels for branding and finishes.
• Ceramic frit, laminated glass, and frit patterns for solar control.

Small glazing table

Glass build-up	Typical thickness	Use
Single clear	6–12 mm	Low-rise interior partitions
IGU 1	24–32 mm (6+12+6)	Standard office façade
IGU 2	36–44 mm	High insulation performance
Laminated	6.38–12.76 mm	Safety and acoustic control

Performance criteria and testing

Suppliers provide test data. Common tests follow international standards.

Test	Purpose
Air infiltration	Measure air tightness under pressure
Water penetration	Check water tightness during wind-driven rain
Structural (wind)	Verify the façade resists design wind loads
Thermal performance	U-value, condensation risk
Acoustic insulation	Sound reduction performance
Seismic movement	Allow for building movement in joints

Typical performance classes (examples):

• Air leakage class: Class A or better
• Water penetration: tested to 600 Pa or more for heavy rain zones
• Wind load: designed to regional code and site wind pressures

Ask the supplier for test certificates and lab data.

Installation and site services

A full-service aluminium curtain wall supplier offers many services.

• Design support and shop drawings
• Structural calculations and load reports
• Factory fabrication and QC checks
• Site delivery and off-loading coordination
• Qualified installation teams and supervision
• Leak testing and final commissioning
• Warranty and maintenance agreements

Installation checklist:

• Confirm structural anchors and embed plates.
• Allow for tolerances in opening size.
• Verify thermal and control joints.
• Protect glass and finish from damage during install.

Typical specifications and dimensions

Use this small table to compare typical profile sizes and system limits.

Parameter	Typical range
Mullion depth	50–400 mm
Transom depth	30–150 mm
Module width	600–2400 mm
Glazing thickness	6–44 mm
Max unit weight	300–800 kg per panel (depends on design)
Sealant joint width	6–30 mm

Applications and sectors

Curtain walls suit many building types. Use lists for clarity.

• Office towers and commercial buildings
• Apartment and residential high-rises
• Hospitals and education buildings
• Airports and transport hubs
• Retail malls and showrooms
• Hotels and hospitality venues
• Civic and cultural buildings
• Refurbishment of heritage façades

Applications table by sector

Sector	Common focus
Commercial	Energy performance and brand image
Residential	Views, acoustic control, solar shading
Healthcare	Hygiene, daylight, thermal comfort
Retail	Visual merchandising and entry atriums

Choosing a supplier — checklist

A short checklist helps choose the right supplier.

• Confirm experience with similar projects.
• Ask for local references and completed projects.
• Review test reports and certificates.
• Check warranties on finish and performance.
• Ensure in-house fabrication or trusted partner network.
• Verify installation crews are trained and insured.
• Compare lead times, logistics, and after-sales support.

Small pre-order table

Item to request	Purpose
Shop drawings	Check dimensions and interfaces
Thermal calculations	Confirm energy targets
Test reports	Verify performance claims
Sample panels	Assess color and finish
Installation plan	Coordinate site works

Maintenance and warranty

Simple maintenance keeps façades in good condition.

• Regularly clean glass and frames.
• Check sealants and gaskets annually.
• Inspect anchors and movement joints.
• Repair chips or scratches early to prevent corrosion.
• Keep spare gaskets and hardware for future repairs.

Typical warranty items:

• Structural warranty: 5–10 years (varies)
• Finish warranty (PVDF): 10–20 years depending on product
• Seal and workmanship warranty: usually 1–5 years

Sustainability and recycling

Aluminium is highly recyclable. Suppliers can help reduce carbon impact.

• Use recycled aluminium or low-carbon suppliers.
• Recycle scrap from fabrication.
• Choose high-performance glazing to reduce energy use.
• Consider modular unitized systems to lower site waste.

Small sustainability table

Item	Benefit
Recycled aluminium	Lower embodied carbon
High-performance IGU	Lower heating/cooling loads
Long-life finish	Reduced replacement frequency
Modular units	Less on-site waste and transport

What is an aluminium curtain wall?

A curtain wall is an outer building skin.
It is non-structural. The building frame carries the load.
Aluminium frames support glass, panels, or metal infills.
Curtain walls resist wind, water, and thermal gain.
A reliable aluminium curtain wall supplier provides design, fabrication, and installation.

FAQs

Q: What is the lead time for a unitized curtain wall?
A: Typical lead time is 8–16 weeks. It varies by complexity and finish.

Q: Can you match custom colours?
A: Yes. Most suppliers match RAL or custom samples. Request a sample panel.

Q: Is aluminium curtain wall suitable for coastal sites?
A: Yes. Use marine-grade alloys, anodize, or PVDF coatings and stainless fixings.

Q: Do you provide thermal break frames?
A: Yes. Most modern systems include polyamide thermal breaks.

Q: How do I get a quote?
A: Provide elevation drawings, opening sizes, glass specs, and preferred finish.