Materials

Aluminium Perforated Panels

Lightweight. Durable. Refined.

Overview

TILT designs and manufactures custom perforated and laser-cut aluminium panels for architectural applications across South Africa and beyond. Our technical team specifies the correct alloy and panel thickness based on your project's wind loading, span, fixing pattern and site exposure — before a single panel goes into production. Every component is engineered to perform, not just to look good.

Aluminium's natural oxide layer provides excellent inherent corrosion resistance. Paired with a quality architectural powder coat finish, TILT panels maintain their colour and structural integrity for years with minimal maintenance. Powder coat is applied electrostatically and oven-cured to a consistent dry film thickness, with matt, satin and textured finishes available in a wide range of standard and custom colours.

Perforation options include round, slot, square, hexagonal and custom laser-cut apertures with open area ratios from 5% to 60%+. All panels are fabricated in-house — ensuring quality control from material selection through to final finishing.

Installation Approaches

TILT uses two proven fixing methods for aluminium perforated panel installations, both supported by a precision 38×38mm aluminium sub-frame system.

Flat Panel

Flat panels are mounted onto a tubular aluminium sub-frame using a combination of VHB tape with structural silicone, or pop rivets depending on location and exposure. This method creates a seamless, flush look with a 3mm expansion gap between panels. Maximum panel size is approximately 1200 × 2450mm (mid-frame supports required for larger panels). Sub-frame is built from 38×38×2mm SHS sections at panel joins with 38×38×3mm aluminium angle as mid-supports. Sub-structure and fixings can be colour-matched on request.

Tray (Cassette) Panel

Tray panels are fixed to the sub-frame using aluminium angle brackets, creating a 15mm shadow gap between panels for a tiled, recessed aesthetic. Maximum panel size is approximately 1100 × 2400mm. The same 38×38mm sub-frame system applies. Corner joints are available in bird beak or butt joint configurations. Sub-structure can be colour-matched on request.

Sub-Frame

A grid of vertical and/or horizontal aluminium stringers forms the sub-frame, fixed to wall or structure with aluminium angle or U-brackets. 38×38×2mm SHS sections are used at panel joins; 38×38×3mm aluminium angle is used as mid-support for larger panels. The sub-frame is colour-matchable to the panel finish where budget allows.

Key Benefits

Why Specify Aluminium Perforated Panels

These are functional engineering reasons — not marketing copy.

☀ Solar Shading

Open area ratios from 5% to 60%+ let you tune heat gain and glare by orientation. A 30% open facade can cut direct solar gain by up to 50% without blocking daylight — specifiable per elevation.

🔊 Acoustic Attenuation

Perforations absorb and diffuse sound rather than reflecting it flat. Relevant for plant room screens, car park facades, road-facing elevations and mechanical enclosures.

🌬 Natural Ventilation

Airflow through apertures reduces heat buildup behind the panel line — lowering HVAC demand in screened enclosures and improving comfort in semi-open structures like pergolas and walkways.

⛔ Zero Corrosion Maintenance

Aluminium's oxide layer self-repairs — no rust, no repainting, no annual treatment. With QUALICOAT Class 2 powder coat, expect a 15–20 year colour warranty and 40+ year service life in SA conditions.

⚖ Structural Load Saving

Aluminium weighs ~2.7 kg/m³ versus steel at ~7.8 kg/m³ — roughly one third the weight. Lighter panels mean lighter sub-frames, smaller fixings and lower structural costs, especially on large facades and retrofits.

⛭ Fully Recyclable

Aluminium retains up to 95% of its original material value at end of life. A responsible specification for projects with Green Star, EDGE or LEED sustainability targets.

Aluminium vs Mild Steel

Both are available from TILT. Here's an honest comparison for the two most common material requests from architects and developers:

FactorAluminiumMild Steel
Weight~2.7 kg/m³ — one third of steel~7.8 kg/m³ — heavier sub-frame required
CorrosionSelf-protecting oxide layer — no base coat neededRusts without galvanising or primer — maintenance risk
Coastal useExcellent — resists salt air nativelyNot recommended within 5km of coast without hot-dip galv
Upfront costHigher material costLower material cost
Lifetime costLower — no repainting, no rust remediationHigher — repaint every 5–8 years minimum
FormabilityHighly formable — curves, radii, complex profilesFormable but heavier to handle and install
SustainabilityFully recyclable, 95% material value retainedRecyclable but higher embodied carbon in production
Best forExterior facades, coastal, long-term buildsInterior screens, budget projects, sheltered installs

For most exterior facade and cladding applications in South Africa, aluminium is the correct specification. Mild steel suits interior screens and sheltered applications where the panel won't be directly exposed to weather or coastal air.

Technical Diagrams

Cross-sections from TILT's installation specification — showing fixing methods, panel gaps, corner joint options and sub-frame construction for both flat and tray (cassette) panel systems.

Panel Options Overview — Flat vs Tray
Panel Options Overview

Flat panel (3mm gap) vs tray/cassette panel (15mm shadow gap, 40mm depth)

Flat Panel Detail
Flat Panel Detail

VHB tape + structural silicone or pop rivets. 3mm expansion gap. Max 1200×2450mm. Butt joint corner.

Tray Panel Detail
Tray (Cassette) Panel Detail

Aluminium angle brackets. 15mm shadow gap, 40mm depth. Max 1100×2400mm. Bird beak & butt joint corner options.

Sub-Frame Construction
Sub-Frame Construction

38×38×2mm SHS at panel joins. 38×38×3mm angle mid-supports. Aluminium angle or U-bracket wall fix. Colour-matchable.

Applications

Architectural facades, feature cladding, solar shading screens, balustrades, staircase railings, entrance canopies, pergolas, louvre panels and mechanical plant screens. Internally deployed as feature walls, ceilings, office partitions, sliding screens, gate infill and AC concealment panels.

Panel Size Reference

Fixing MethodMax Panel SizeGap Between PanelsFixing Method Detail
Flat Panel1200 × 2450mm3mm expansion gapVHB tape + structural silicone or pop rivets
Tray (Cassette)1100 × 2400mm15mm shadow gapAluminium angle brackets

Mid-frame supports are required for panels approaching maximum dimensions. Sub-frame: 38×38×2mm SHS at joins; 38×38×3mm angle for mid-supports. Corner joint options: butt joint or bird beak. All sub-structure and fixings colour-matchable on request.

Panel Composition

Every ACP panel supplied by TILT uses the same proven multi-layer construction — engineered for flatness, weather resistance and long-term colour stability.

PVDF Top CoatWeather-resistant fluoropolymer finish — the same chemistry used on architectural curtain wall systems worldwide.
Primer CoatAdhesion promoter bonded to the aluminium surface before topcoat application.
Passivation LayerCorrosion-inhibiting treatment applied directly to the aluminium coil surface.
Aluminium Skin — 0.5mmAA3003 / AA3105 alloy. Both faces are aluminium coil — front and back.
Adhesive FilmStructural bond between aluminium skin and core, applied under heat and pressure.
Core — PE or FR MineralStandard: polyethylene for interior and sheltered exterior. FR option: non-combustible mineral-filled core for multi-storey facades (SANS 10400-T).
Service Coat / Mill FinishProtective PE rear face coating. Standard across all grades.

Fire Safety

TILT supplies ACP in both standard PE core and non-combustible FR mineral-filled core configurations. Specify the correct core type for your project — multi-storey facade work in South Africa requires compliance with SANS 10400-T.

Class A2
FR Mineral Core — Non-Combustible
Highest fire classification. Non-combustible mineral-filled core. Required for multi-storey facades under SANS 10400-T and specified by many commercial developers as standard.
Multi-storey facadesCommercialHigh-rise
Class B
FR Mineral Core — Limited Combustibility
Mineral-filled core with Class B fire classification. Suitable for low-to-medium-rise facades, canopies and covered exterior applications where FR performance is specified.
Low-rise facadesCanopiesExterior soffits
Certification Standards
EN 13501-1:2018NFPA 285-2019ASTM D1929-16ASTM E84-22ISO 9001

Technical Specification

Reference data for the two core grades TILT specifies. Physical samples and full data sheets are available on request via the Specifiers Portal.

PropertyPE CoreFR Mineral Core (A2)
Panel Thickness4.0 mm4.0 mm
Aluminium Skin0.5 mm each face0.5 mm each face
Panel Weight6.0 kg/m²8.2 kg/m²
Aluminium AlloyAA3003 / AA3105AA3003 / AA3105
Coating TypePVDF / FEVEPVDF / FEVE
Tensile StrengthMin. 40 MPaMin. 45 MPa
Yield StrengthMin. 35 MPaMin. 40 MPa
Thermal Expansion2.4 mm/m/100°C2.4 mm/m/100°C
Fire ClassificationClass A2-s1,d0 (EN 13501-1)
Sound Transmission Loss25 dB25 dB
Panel Dimensions2440×1220 | 3050×1220 | 3660×1220 mm
Tolerance — Length / Width±4.0 mm / ±2.0 mm

Shade variance may occur between batches. Always request a physical sample for final colour sign-off. Data sheet available on request.

Latest Available Finishes

The 25 finishes shown here are our latest available range. Standard solid colours including white, black, charcoal, gun metal and grey are also available on request. Contact us to discuss options or to request a physical sample.

6512Ash Silver
6003Velvet Basalt Grey
180Graphite Grey
10002Elegant Copper
10003Aged Copper
8015Patina
8014Corten Steel 1
8016Corten Steel 2
10010Pre-Rusted Cor-Ten
11001AluZinto Ash
9002Cement
9008Grey Onyx
9022Milan Grey
9024Nero Carrera
403Travertine
901Silver Mojave
906Ice Burst
554Tiger Wood
379Smoke Walnut
393Larch Wood
409Dry Bamboo
396Teak Wood
404Ivory Oak
405Yellow Beige Timber
203Brush Silver

Finishes & Colours

ACP is available across solid colours, metallics, timber, stone, oxidised metal, anodised and brush-effect finish families. The 25 finishes shown are our current available range — standard whites, blacks, charcoals and greys also available on request.

Solid & Metallic
Solid Colours & Metallics
Architectural-grade PVDF solids, metallics, champagnes and sparkle finishes. The workhorse of any facade palette — consistent, repeatable, durable.
Timber
Wood-Effect Finishes
Premium and standard timber prints — teak, oak, wenge, mahogany and more. All the warmth of timber with the durability and weather resistance of aluminium.
Stone & Concrete
Natural Stone & Concrete Effects
Marble, granite, slate and concrete-look finishes. High-resolution print on a rigid aluminium substrate — no cracking, no staining, easy maintenance.
Oxidised Metal
Aged & Tarnished Metal Effects
Corten, aged copper, patina, verdigris, brushed titanium and oxidised steel looks. All the character of weathered metal without the structural liability.
Anodised
Anodised Aluminium Effect
Genuine anodised-look finishes including natural, gold, copper and bronze. 5005 alloy substrate on a full composite panel build.
Brush & Mirror
Brush & Mirror Finishes
Brushed silver, gold mirror and silver mirror. High-impact reflective finishes for feature elements, lobbies and retail facades.
Ready to specify a finish?
Request a physical sample or download the full colour range from the Specifiers Portal.
Specifiers Portal