Wall Assembly
4 LayersInside Layers
Natural diffusion open finish with humidity and temperature regulation for comfort (inside use only, applied directly on straw)
Core Structure (EcoCocon Panel)
Passive House certification restricted to 400mm
EcoCocon straw panel certified for Passive House standard
✓ Passive House Certified already includes the timber structure.
Wall Configuration
Core thickness: 400mm
Additional thickness (straw overhang): 12mm (6mm each side)
Total core thickness: 412mm
Outside Layers
Proclima Mento 3000 vapour open membrane with sd=0,05m
Additional insulation and protection. Density 270 kg/m3
Exterior Surface Heat Transfer
Thermal Performance
0.128W/(m²·K)
7.824
Total R-Value (m²·K/W)
Efficiency RatingPassive House Standard
Lower U-Value indicates better insulation. Target for modern standards is typically below 0.18 W/(m²·K).
Core Configuration
Core Lambda:0.0645 W/m·K
Timber Content:Included
Calculation Breakdown
| Layer | Material | Thickness (mm) | λ (W/m·K) | R-value (m²·K/W) |
|---|---|---|---|---|
| RSI | Inside surface resistance | - | - | 0.13 |
| In 1 | Clay Plaster | 25 | 0.6000 | 0.0417 |
| Core | EcoCocon Panel (Straw + Timber) | 412 | 0.0645 | 6.3876 |
| Out 1 | EcoCocon Membrane | 0.5 | - | - |
| Out 2 | Wood Fibre Board | 60 | 0.0490 | 1.2245 |
| RSE | Outside surface resistance (Exposed) | - | - | 0.04 |
| Total Thickness | 498 mm | |||
| Total R-value | 7.8240 | |||
| U-value (1/R) | 0.1280 W/(m²·K) | |||