Exterior wall panel
Natural insulation, healthy construction.
Our patented hemp-lime building component integrates superior insulation properties and the Cradle to Cradle principle directly into the wood-frame construction. There is no need for “sandwich construction”—planning and bidding proceed as usual. Please feel free to request additional documentation from Cancret.
The timber-frame elements are prefabricated locally and then filled with the hempcrete mixture on site.
Technical data & product features
U-value
| Wall panel according to cross-section | 0.15 W/(m²·K) |
| Thermal conductivity λ of hempcrete | 0.07 W/(m·K) |
| Thermal conductivity λ of wood fiber insulation board | 0.04 W/(m·K) |
| Thermal conductivity λ of spruce wood | 0.13 W/(m·K) |
Construction & Dimensions
| Structure | 120 to 420 mm |
| Element dimensions (max.) | 3.50 × 8.00 m |
| Weight (hempcrete) | 350 kg/m³ |
Building Physics & Standards
| Sound insulation based on cross-section | Rw (C; Ctr) = 58 (–2; –7) dB, EMPA certificate |
| Fire Safety | Class B1 according to EN 13501-1; DIN 4102 |
General product features
| Composition | Cancret hemp-lime mixture in a wooden frame |
| Carbon sequestration capacity of hempcrete | –100 kg CO2/m³ (climate-positive, certified, and tradable) (Modules A1–A3 according to EN 15804) |
| Estimated price (CHF/sq. ft.) | Approx. 250 CHF/m² (depending on cross-section and geometry) |