One of unique selling points as a snagging company is our ability and expertise checking for cavity wall insulation issues. The importance of cavity wall insulation is to prevent air flow as this allows heat to easily escape. As shown here in a new build snagging survey carried out by our inspector Lee just last week, this house had extensive voids and rubble.
The issue with rubble is that it can sit on wall ties or group between the block and brick and act as a conductor for damp ingress.
