When all material had been collected, the researcher carried out a thematic analysis of the interviews. The participant-produced images were not analysed, since the purpose of the photographs in this case was to encourage participants to talk about and reflect on their experiences with their windows. The thematic analysis followed a multiple-stage process as proposed by Braun & Clarke (2006), including moving back and forth between steps. Codes were developed after data collection and included a first- and second-cycle coding (Miles et al. 2014); in other words, sorting interview excerpts and categorising them according to researcher-produced labels (Kvale & Brinkmann 2009).