Exterior wall cladding panels are aluminum composite panels (ACP) manufactured for building facades, combining two pre-painted aluminum alloy skins bonded to a mineral-filled or polyethylene core in a continuous lamination line. The result is a rigid, flat panel that weighs 5.5-8.5 kg/m² yet delivers the surface quality, color consistency, and weather resistance that architectural facades demand over a 20-plus year service life.
The aluminum skins use 3003 or 5005 alloy at 0.3-0.5mm thickness, coil-coated with PVDF fluorocarbon paint that meets AAMA 2605 for color retention, chalk resistance, and gloss stability under prolonged UV exposure. For high-rise and public buildings where fire code mandates non-combustible cladding, mineral-filled FR cores at 70-90% mineral content achieve A2-s1,d0 classification per EN 13501-1.
Standard panel format is 4mm total thickness at 1,220 mm or 1,500 mm width and lengths up to 6,000mm. Panels are fabricated off-site by CNC routing, folding, and cassette forming before installation on the building’s sub-frame system. Applications span commercial facades, residential exterior cladding, retail shopfronts, transportation hubs, column covers, and signage.
Your Trusted Manufacturer for Exterior Wall Cladding Panel
RaxPanel operates a continuous coil-coating and lamination line in Hebei, China, dedicated to aluminum composite panel production. The coating line applies primer, PVDF topcoat, and protective film to aluminum coil in a single pass, with oven-cured paint film thickness monitored by inline gauges at 25-micron tolerance. Color is matched to the project RAL or Pantone reference under D65 daylight simulation before the coil enters the laminator.
The facility has produced facade panels for since 2002 at a daily throughput of 1,700 m², supplying architectural projects in more than 30 countries. Peel strength is tested per ASTM on samples from each coil changeover, and surface flatness is verified against a 1.5mm-per-meter straightedge before cutting. Finished panels are interleaved with protective film and packed in wooden crates sized for container loading. Send us your facade elevation drawings, color schedule, and core specification, and we will confirm panel format, coating system, and delivery timeline.
- Continuous coil-coating line with inline film-thickness gauges and D65 daylight color matching, holding 25-micron tolerance across full production runs.
- Peel strength and flatness verified on samples from every coil changeover; rejected coils are quarantined before reaching the laminator.
- Custom panel formats, routing, and corner solutions machined to facade elevation drawings; protective film and wooden crate packing sized for container loading.
- Color laboratory with spectrophotometer for RAL and Pantone matching; sample chips dispatched within 3 working days for architect approval.
| Parameter | Value |
|---|---|
| Skin Material | Pre-painted Aluminum Alloy (1100, 3003, 5005) |
| Skin Thickness | 0.3-0.5 mm |
| Core Material | Mineral-filled FR / LDPE / PE |
| Состав сердечника | FR: 70-90% mineral; LDPE: 100% polymer |
| Panel Thickness | 3–6 мм (стандарт: 4 мм) |
| Стандартная ширина | 1 220 мм / 1 500 мм |
| Max Length | Up to 6,000 mm |
| Вес панели | 5.5-8.5 kg/m² |
| Coating Type | PVDF / FEVE / PE |
| Прочность отрыва | > 5 N/mm (ASTM) |
| Flexural Strength | > 100 МПа |
| Группа горючести | A2-s1,d0 (FR core); B1 (LDPE); B2 (PE) per EN 13501-1 |
| Temperature Range | -50°C to +80°C |
| Color Retention | 20-25 years (PVDF coating) |
| Surface Finish | Solid, Metallic, Wood Grain, Stone Grain, Mirror |
Exterior Wall Cladding Panel Selection Guide
Exterior wall cladding panels form the building’s weather envelope and its visible architectural face. The specification choices below affect weathertightness, thermal compliance, facade appearance, and long-term maintenance cost.
Pro Tip: Request the Full System From One Supplier
Ordering panels, flashings, sealants, and fasteners from separate vendors creates compatibility gaps and splits warranty responsibility. A single-source supply ensures the joint sealant, gasket profiles, and coating chemistry are tested together for 25-year weathertight performance.
Ordering panels, flashings, sealants, and fasteners from separate vendors creates compatibility gaps and splits warranty responsibility. A single-source supply ensures the joint sealant, gasket profiles, and coating chemistry are tested together for 25-year weathertight performance.
1. Coating selection for facade durability
2. Joint design and rain-screen principles
Cladding panels manage rain through a pressure-equalised joint: the outer seal sheds bulk water while the inner cavity allows any moisture that bypasses the first line to drain back out. Tongue-and-groove joints with a ventilated cavity behind the panel face achieve this without exposed sealant beads, reducing maintenance and keeping the facade clean.
3. Thermal compliance and energy code targets
Panel thickness is the primary lever for meeting U-value requirements. A 100 mm PU panel achieves approximately 0.22 W/m²K, satisfying most European commercial energy codes. For projects targeting passive-house or near-zero-energy standards, 150-200 mm panels or a supplementary interior insulation layer bring U-values below 0.15 W/m²K.
4. Colour, profile, and architectural expression
Micro-ribbed, flat, and corrugated profiles create different shadow lines and visual textures on the facade. Standard RAL colours ship from stock; custom colours and metallic finishes are available with minimum order quantities. For multi-colour facades, order all panels in one production run to eliminate batch-to-batch shade variation.
Frequently Asked Questions
Can cladding panels be installed over an existing wall?
Yes. Panels fix to a secondary steel or aluminium sub-frame anchored to the existing structure. Verify the existing wall’s pull-out capacity before specifying the anchor type and spacing.
What is the maximum panel width for facade applications?
Standard effective widths are 1,000 mm and 1,100 mm. Wider panels up to 1,200 mm are available for flat-profile facades where the support grid allows closer purlin spacing.
How do I handle thermal expansion in long facade runs?
Sliding fixings at intermediate supports allow 2-3 mm of thermal travel per 10 m panel length. Fixed points are placed at one end only, with expansion joints at building movement gaps.
What fire rating is required for exterior cladding?
Requirements vary by jurisdiction and building height. Most European codes require B-s1,d0 or better for buildings above 18 m. Mineral wool core panels achieve A2-s1,d0 for the most restrictive applications.
Sandwich Panel Manufacturer
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