True if the surface temperature is solved; false treats it as ambient.
Patch Size
P
Target mesh patch edge length (m) for view-factor resolution.
Mat
Optional material from a Surface / Vegetation / Tree Settings component; overrides the default reflectance / Radiance material for this surface.
Tsrf
Optional fixed surface temperature (°C) for the longwave MRT — one value (held all year) or an 8760-hour series. When set, this surface uses the given temperature instead of the EnergyPlus solve or ambient (overrides Simulated). Leave empty to keep Simulated/Ambient.