TY - JOUR A1 - Krankenhagen, Rainer A1 - Maierhofer, Christiane T1 - Pulse phase thermography for characterising large historical building facades after solar heating and shadow cast - a case study N2 - For assessing building façades using active thermography, in case of direct solar exposure the sun itself can be used as heat source. It is shown that active thermography can be applied to large areas successfully, if a shadow cast occurs. After performing a sequence reconstruction in order to correct the temporal behaviour of shadow movement, the data could be analysed by pulse phase thermography (PPT). Compared to raw thermograms, the obtained phase images display an improved image quality with a lot of details. The frequency of the phase images is related to the probing depth. The presented case study describes the thermographic investigation of an historical building façade, where an area of 17 m x 13 m has been investigated. KW - Pulse phase thermography (PPT) KW - Building façade KW - Solar heating KW - Cultural heritage PY - 2013 DO - https://doi.org/10.1080/17686733.2013.865910 SN - 1768-6733 SP - 1 EP - 19 PB - Lavoisier CY - Cachan Cedex AN - OPUS4-30057 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -