Damp caused by cavity-wall insulation is very rare.
However, it’s worth checking whether your home’s at risk. Damp could occur in properties as a result of cavity-wall insulation if there is a combination of these factors:
- The property is constantly exposed to severe levels of wind-driven rain.
- The property is located in an unsheltered position, e.g. not protected by other buildings, trees etc
- The property has external walls that show deterioration, for example, cracks in the brickwork or rendering.