It is recommended that certain conditions are met to ensure any outcomes within our reports are fully accurate and actionable. To ‘see’ heat loss (or gain) at least a 10°C temperature difference between the inside and outside must be achieved for a minimum of 24 hours prior to the survey if occupied, or 72 hours for a ‘dead’ building. If the building has no operational heating system, temporary direct heaters (such as space heaters) may be required. It’s because of this that surveys can often take place very early in the morning or late in the evening.
For a full list of thermographic survey requirements, please click here.