Not sure how to repair this so asking for advice - the hard render on the outside of my Dad's 1920's timber framed bungalow has failed in the corner. The internal walls are lath and lime. Would it be okay to use a 3 sharp sand to 1 NHL 5 for repairing this corner. Should I be replacing the damaged brick? Some furry creatures are darting to and fro from this hole so am keen to make good.
Last edited: