Building physics tool
Thermal performance and U-value calculator
Compare wall and roof build-ups using editable thickness and conductivity values, then print the calculation for technical discussion.
Build the wall or roof assembly
Select a common starting assembly or add each layer manually. Conductivity values are planning references and should be replaced with approved manufacturer data.
| Material | Thickness (mm) | Conductivity λ (W/m·K) | R-value | Remove |
|---|---|---|---|---|
| 0.029 | ||||
| 1.974 | ||||
| 0.050 |