U Value Calculator Software Free Download
U-value, or thermal transmittance, is a crucial factor in building physics and energy efficiency. It measures how well a building element prevents heat transfer. Our free u-value calculator software helps you determine this value accurately.
- Enter the thickness of the material in millimeters.
- Enter the thermal conductivity of the material in W/mK.
- Click ‘Calculate’.
The formula for calculating U-value is: U = 1 / (thickness / conductivity).
| Material | Thickness (mm) | Conductivity (W/mK) | U-Value (W/m²K) |
|---|---|---|---|
| Brick | 100 | 0.8 | 0.0125 |
| Wood | 20 | 0.16 | 0.05 |
| Glass | 6 | 0.78 | 0.1233 |
| Insulation Type | U-Value (W/m²K) |
|---|---|
| No Insulation | 1.0 |
| Single Glazing | 5.8 |
| Double Glazing | 2.8 |
- Higher U-values indicate poorer insulation.
- Consider using insulation materials to lower U-values.
- Regularly check and update U-values to ensure energy efficiency.
What is the difference between U-value and R-value?
U-value measures heat transfer rate, while R-value measures resistance to heat flow.
Can I use this calculator for other units?
Yes, you can convert units using online conversion tools.
Energy Code and NREL Study provide more insights.