Yes it’s vented top and bottom. The chimney runs right up through the gable end I have tested the walls upstairs in the bedroom either side of the breast and it’s dry just seems to be two sides of the breast as if it’s right in the corners in the cavity driving me insane I have a de humidifier...
Hi there I recently bought a semi detached house and on the Home report there was no dampness. After re wiring re plastering everything the house dried out 100%. After the chimney wall was decorated a few months later we encountered a outline of dampness which then turned out to be quite a bit...