ALUCOBOND® A2 - Chad Group Exterior Cladding

ALUCOBOND® A2

ALUCOBOND® A2 is our non-combustible aluminium composite panel used in architecture that fulfills the respective standards worldwide. Thanks to its mineral-filled core, ALUCOBOND® A2 meets the strict requirements of the fire regulations and enhances the possibilities for the concept and design of buildings. ALUCOBOND® A2, just like all the products of the ALUCOBOND® family, allows simple processing, is impact-resistant, break-proof and weatherproof and, above all, non-combustible.

ALUCOBOND® A2 compared with solid aluminium
Required thickness and actual weights of panels with same rigidity

  ALUCOBOND® A2 Aluminium
Rigidity (E·J) Section modulus Thickness Weight Thickness Weight
1250 kN cm²/m 1.25 cm³/m 3 mm 5.9 kg/m² 2.7 mm 7.3 kg/m²
2400 kN cm²/m 1.75 cm³/m 4 mm 7.6 kg/m² 3.3 mm 8.9 kg/m²
Thickness   Standards Unit 3 mm 4 mm
Thickness of Aluminium Layers     [mm] 0.5
Weight     [kg/m²] 5.9 7.6
Width     [mm] 1250 / 1500
 
Technical properties
Section modulus W DIN 53293 [cm³/m] 1.25 1.75
Rigidity E·J DIN 53293 [kNcm²/m] 1250 2400
Alloy / Temper of Aluminium Layers   EN 573-3 EN 515   EN AW 5005A (AIMg1) H22 / H42
Modulus of Elasticity   EN 1999 1-1 [N/mm²] 70'000
Tensile Strength of Aluminium   EN 485-2 [N/mm²] Rm ? 130
0.2 % Proof Stress   EN 485-2 [N/mm²] Rp0,2 ? 90
Elongation   EN 485-2 [%] A50 ? 5
Linear Thermal Expansion   EN 1999 1-1   2.4 mm/m at 100ºC temperature difference
 
Core
Mineral-filled core with polymer adhesives
 
Surface
Lacquering       Coil Coating Fluorocarbon (e.g. PVDF)
Gloss (initial value)   EN 13523-2 [%] 30-80
Pencil Hardness   EN 13523-4   HB-F
 
Acoustical Properties
Sound Absorption Factor ?s ISO 354   0.05
Sound Transmission Loss Rw ISO 717-1 [dB] 27 27
Loss Factor d EN ISO 6721, Frequency range 100-3200 Hz   0.004 0.005
 
Thermal Properties
Thermal Resistance R DIN 52612 [m²K/W] 0.002 0.002
Thermal conductivity ? DIN 52612 [W/mK] 1.99 1.77
Heat Transition Coefficient U DIN 52612 [W/m²K] 5.83 5.80
Temperature Resistance     [ºC] -50 to +80
 

Wind load and permissible panel sizes

In Germany, the dimensioning of ALUCOBOND® façade systems is regulated by the general building inspectorate approval (abZ) No. Z-10.3-774. In the Technical Extras section, you can find this and other documents, including load tables, dimensioning aids and various design examples

Country Test accord. to ... Classification
Australia AS ISO 9705 AS 1530.3 Indices EN 13501-1 Group 1 material SMOGR A 0.630 m2 / s2 0 (ignitibility) 0 (flame spread) 0 (heat evolved) 0-1 (smoke developed) A2-s1, d0
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