Wall Assembly
1 LayersInside Layers
No inside layers. Click "Add Layer" to add gypsum, plaster, etc.
Core Structure (EcoCocon Panel)
Select core thickness from 300mm to 400mm (10mm increments)
(λ = W/mK)
10.0% (default)
Timber (0.130)
10.0%
Straw ()
90.0%
Blended λ
0.0000
Adjust the timber percentage to blend timber (0.130 W/m·K) with straw. Higher timber content reduces thermal performance but may improve structural properties.
Wall Configuration
Core thickness: 400mm
Additional thickness (straw overhang): 12mm (6mm each side)
Total core thickness: 412mm
Effective core lambda: 0.0000 W/m·K
Outside Layers
No outside layers. Click "Add Layer" to add wood fibre, OSB, etc.
Exterior Surface Heat Transfer
Thermal Performance
0.152W/(m²·K)
6.558
Total R-Value (m²·K/W)
Efficiency RatingHigh Performance
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
Calculation Breakdown
| Layer | Material | Thickness (mm) | λ (W/m·K) | R-value (m²·K/W) |
|---|---|---|---|---|
| RSI | Inside surface resistance | - | - | 0.13 |
| Core | EcoCocon Panel (Straw + Timber) | 412 | 0.0645 | 6.3876 |
| RSE | Outside surface resistance (Exposed) | - | - | 0.04 |
| Total Thickness | 412 mm | |||
| Total R-value | 6.5580 | |||
| U-value (1/R) | 0.1520 W/(m²·K) | |||