The estimated temperature error using an infrared thermal imaging camera

The calculation of energy efficiency of buildings has carried out based of the measurements (external and internal building temperature, emissivity of the outer and inner surfaces of the wall) and the appropriate construction parameters. The aim of this paper is to show the impact of changes of emissivity on the accuracy of the temperature of building materials and heat flux construction. The experiment has been performed using Infrared Thermal Imaging Camera FLIR T 420. The samples have been building materials- brick, tin, a type of marble and piece of fir. The analysis of the generated images has been done in FLIR Tools+ software package. We have obtained that the temperature error is different for the given buildings materials. The maximum absolute temperature error is approximately 0.4°C.