Passive House wall calculator - U-Wert.net

You build the wall, floor or roof assembly with preset components (all with thermal, moisture and durability data included), with the ability to add / remove layers.

This U-value calculator analyzes your component (for example, wall, roof, ceiling, etc.) with regard to insulation, moisture protection and heat protection:

1. Enter all layers from the inside out.
2. Use the button to insert wooden beams into an insulation layer.

The main results are displayed at the bottom of the screen. More detailed information can be found on the left-hand side of the screen using the buttons U-value, humidity, heat, etc.

For commercial usage, calculations are made according to DIN 6949 (U value), DIN 4108-3 (moisture protection) and DIN 68800-2 (drying reserve).