The web application assumes slab on grade construction with a uniform assembly U value of:
- Metric: 0.338 W/m2·K
- US: 0.059 Btu/ft2·°F (approximately R-17).
The ground temperature is dynamically calculated from the weather file. It is not a constant temperature, as it had been in earlier versions of Sefaira.
Users are able to download the corresponding .idf file to manually alter inputs to run through EnergyPlus.