The windows are not energy efficient, but the roof is.
Step-by-step explanation:
This picture form is used for heat loss identification and location of areas that require extra insulation. The spectrum of temperature is from mild (white) to cool (blue).
Thermography is a technique to visualize surface temperature by recording infrarot long-wave emissions.
The ventilation of the roof and windows reveals most of the heat drained from the building. Building thermograph displaying heat loss zones.