Envelope behavior assessment: in situ measurement and analysis of thermal loss.

One of the key issues in today’s construction industry is energy saving. Current technologies for estimating heat transfer functions of building envelopes are based on point thermal measurements. Hence, they are inadequate for the analysis of thermal loss dynamics that are inherently two or three-dimensional. On the other hand, spatially wide thermal measurements are possible through thermography, but this technique is used mainly in a qualitative perspective. This paper reports on the development of a new methodology for estimating heat loss of building envelopes, through quantitative thermographic technique.