03/12/2021
I have surveyed a significant number of bungaroosh walled properties in Sussex, however this was the first time I found significant issue with the material. It was only a question of time. A partial collapse of the gable wall which will need to be partially rebuilt using traditional materials.
Root cause here considered to be due to mainly water pe*******on via an almost non-existent gable tile verge lip.
Bungaroosh walls were often hidden behind the impressive stuccoed façades of Regency-style houses or mathematical tile façades.
Bungaroosh is made principally of lime, gravel, coarse sands and flints, often with some brick snaps/fragments, or other deck rubble added. Sometimes bits of wood are added.
Bungaroosh walls can become friable and collapse. The reasons range from poor build quality materials or low lime content, to particle erosion caused by salt infused pebbles and sand from the beach. Water can get behind the cement rendered face of the wall, washing away the trapped surface of the wall, while badly carried out repairs – for example, using incorrect materials such as modern cements – can also lead to collapse.
