Heat bridges and energy consumption
Danish building regulations only allow an inconsiderable extent of heat bridges in outside building components. This requirement should minimize the risk of condensation and formation of fungus and reduce the heat loss through building components.
The heat that flows from the building interior through the building envelope to the outside environment constitutes a major part of the entire energy loss. The new energy requirements have led to improved insulation of constructions.
Thermography reveals variations in temperature
Thermographic cameras register surface temperatures and detect infrared radiation emitted by objects based on their temperature. To obtain good thermographic results, temperature variations between outside and inside are required to be at least 10 degrees. Whether the thermographic examination should be carried out inside and/or outside the building depends on the object examined. Good building technology and a thermal imaging photography will be able to reveal whether temperature variations are caused by irregularities or defects in thermal insulation.
A thermographic examination of a building is carried out in accordance with DS/EN 13187 Thermal performance of buildings - Qualitative detection of thermal irregularities in buildings envelopes - Infrared method.
Leakages
Thermographic cameras can be used to find heat leaks in buildings with the purpose of detecting thermal irregularities in building envelopes. This is done by creating underpressure in the building whereby cold air from the outside is drawn through cracks and thereby cooling the surrounding environment.
Underfloor heating
If a floor is not evenly heated throughout the surface, the cause could be that the heating tubes are not appropriately placed, or in some instances that the underfloor heating system is defective or leaking. A thermal imaging photography will be able to detect the location of the heating tubes and the leakages.
