Loft extension insulation – double-glazed Velux windows, 100mm insulation
plasterboards to all walls, 200mm glass-fibre insulation on all surfaces within loft-
storage spaces.
External wall insulation 100mm EPS insulation to all three sides of the house,
which should now have a U-value of less than 0.3 W/m 2 K (down from 2.1 W/m 2 K)
Heat loss monitoring – before and after projects using a set of hygrometers
monitored from Home Assistant, complemented by FLIR heat-images comparisons