I bought a 3 storey Victorian house. Externally, top two floors painted (under cement mortar), lower ground floor cement render. All in good condition. As in photo. Lower ground floor has damp inside. The damp survey recommended removing external cement render from the lower ground and re-render with lime to reduce condensation and for breathability. The upper two floors have no damp. Upon contacting one of the lime render tradesman to remove and re-render the lower ground external wall, he said unless the entire front elevation was redone, apparently the damp will creep up to the upper areas. I don't see how that can happen as there's no damp on any of the external walls or beyond 0.5 m of the lower ground floor internal wall. This was to promote breathability. Does he have a point, or just trying to sell more work that I don't need?
