[MikkelRasmussen]

SkyFi Earth Observation guy here - the multispectral images do cover parts of the near-infrared ranges, but not the thermal infrared, so heat loss is not possible with the current data. We are eagerly awaiting more satellites being launched, some of which will be carrying thermal infrared sensors, with spatial resolutions suitable for observing heat loss through the roof. The wavelengths covered by the current multispectral offering is from 450nm to 1040nm. In comparison, the wavelength of thermal emissions from a house, of say 30 degrees celsius, is around 9700nm.