Dirk joined the Council for Scientific and Industrial Research (CSIR) in South Africa in 1989 and is currently a senior
researcher in the Built Environment unit of the CSIR in Pretoria. He originally trained and practised as an architect but
later specialised in systems and software related to the built environment.
He is currently part of a research group
that focuses on predictive building performance analysis especially by means of passive methods such as natural
ventilation and solar control.