Cultural buildings have a different remit to most building typologies as they typically have high heritage and architectural value and are often listed. As such retrofits need to be sensitive and primarily ensure the  preservation of the building fabric and artefacts contained within. At the same time, cultural buildings, particularly museums can have very high energy intensity due to their conditioning requirements leading to tension with requirements for fabric upgrade. We gather leading experts delivering some of the most important cultural buildings in the UK to hear how a sensitive retrofit tapestry is being achieved at the Burrell Gallery in Glasgow, the Museum of London and the Barbican in London.