This cork board datasheet lists dimensions and source-reported thermal data for natural cork insulation boards. First, read the figures alongside the original PDF. Then confirm the current product declaration and complete ETICS specification before installation.
Download the original cork-board datasheet (PDF) · Product guide · System options
Dimensions and material
- Board size: 1000 × 500 mm (±1 mm).
- Available thicknesses listed: 10, 20, 30, 40, 50 and 60 mm (±1 mm).
- Density: 170 kg/m³ (±5%).
- Source composition: 98.5% granulated cork and 1.5% adhesive, described as solvent-free.
Source-reported technical values
| Property | 20 mm board | 60 mm board |
|---|---|---|
| Thermal conductivity λ | 0.045 W/(m·K) | 0.049 W/(m·K) |
| Thermal resistance R | 0.444 m²·K/W | 1.225 m²·K/W |
| Weighted sound absorption αw | 0.15 (Class E) | 0.50 (Class D) |
| Reaction-to-fire classification | Euroclass E | Euroclass E |
| Water-vapour diffusion resistance μ | 8–15 | 8–15 |
| Water absorption | <2 kg/m² | <2 kg/m² |
| Compressive strength | >180 kPa | >180 kPa |
| Flexural strength | >120 kPa | >120 kPa |
The supplied datasheet reports these figures; we have not carried out new independent tests. However, it gives thermal and acoustic results only for 20 mm and 60 mm boards. Therefore, confirm the declared data for your chosen thickness before specifying it. The costing workbook also contains different thermal entries, so this page retains the original datasheet figures.
Using R and U values
For a homogeneous layer, R = thickness in metres ÷ thermal conductivity. In contrast, a U-value describes the complete wall, including its layers and surface resistances. Therefore, the board figures alone cannot establish a whole-wall U-value or an energy-saving forecast.
Specification notes
The datasheet cites ETA-13/0783. Before specifying a system, request the current declaration, ETA and test reports to check their scope. Its Euroclass E entry relates to the board; the spray-coating classification applies to a different product. Also assess substrates, moisture, fixings, adhesive, reinforcement and finishes together as a complete build-up.
Rendered cork board datasheet
You can view both original pages below. For zooming or printing, use the PDF download, which retains the complete source wording.
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