Aluminium
Low density makes aluminium useful for large-format cladding, folded panels, fins, battens and perforated systems. Alloy, temper, thickness, stiffening, finish and galvanic interfaces still need project review.
Decision Centre / Global
Aluminium or steel façade system?
Material choice affects panel weight, framing, corrosion protection, forming, span, fixing, finish and maintenance. The façade should be selected as a complete system rather than by sheet material alone.
Global / overseas search owner Manual project review Exact-system evidence only
Direct answer
The short version.
Aluminium is often favoured for lightweight cladding, formed panels, fins and corrosion-resistant coated systems. Steel can provide greater stiffness and strength for a given geometry and suits robust screens, support frames and weathering-steel architecture. Final selection depends on the exact alloy or grade, section, finish, fire strategy, exposure and support system.
Project decision
What matters before product selection.
Use these points to structure the first project conversation. Final suitability stays tied to the actual site, selected system and local project team.
Steel
Carbon, stainless and weathering-steel pathways can suit robust fabricated screens, secondary structure and material-led façades. Corrosion protection and runoff behaviour vary materially by steel type.
System evidence matters more than a generic material claim
Wind, panel deflection, anchors, fire performance, finish warranty, coastal exposure and thermal movement must be tied to the proposed build-up and exact material specification.
Comparison matrix
Aluminium vs steel façade systems
Use the matrix for material screening, then verify the proposed panel, frame, fixing and finish as one system.
| Factor | Aluminium | Steel |
|---|---|---|
| Weight | Lower density | Higher density |
| Stiffness / strength | Section and alloy dependent | Often higher for comparable section geometry |
| Forming | Strong folded / curved / extruded pathways | Strong fabricated / folded / welded pathways |
| Corrosion strategy | Alloy + coating / anodising / isolation | Galvanising, paint, stainless or weathering-grade strategy |
| Thermal movement | Relatively high expansion | Lower expansion than aluminium |
| Typical façade uses | Cladding, fins, battens, perforated panels | Screens, support frames, robust fabricated panels, weathering steel |
| Coastal review | Finish, alloy and fixings critical | Grade / coating / detailing critical |
Project brief
Information worth collecting before quotation.
01Architectural intent
02Panel / screen geometry
03Material grade
04Panel thickness / section
05Wind and structural loads
06Subframe
07Fixings / galvanic separation
08Finish system
09Fire-performance evidence
10Coastal / industrial exposure
11Maintenance access
12Runoff / staining risk
Frequently asked
Answers without oversimplifying the project.
Is one option always the right choice?
No. The useful choice depends on the project outcome, site conditions, scale, local work, operating expectations, maintenance and the technical evidence available for the exact system.
Does Apollo calculate a universal online price from this guide?
No. Apollo uses a project-brief and quotation process so product family, configuration, quantity, destination, freight and project interfaces are reviewed before pricing.
Who handles local engineering, approvals and installation?
Apollo is primarily supply-only. Local engineering, approvals, foundations, services, installation and other site work remain with the appointed local project team unless a written scope states otherwise.
Next step
Turn the research into a real project brief.
Send the site, dimensions, intended use, quantities and known local requirements. Apollo will review the relevant product pathway and keep local engineering, approvals and site-work responsibilities explicit.