Our 1920s semi had a damp problem. Failed/wet cavity wall insulation was identified as the cause, so we had the insulation removed.
It was removed amid this damp winter and air-brick ventilation was installed on external walls to help it dry out in the longer term.
But now, after it has been removed we are getting terrible white mould flaring up on one patch of the living room wall. The damp patch is on a wall from which the insulation was removed. The mould patch is about 1.5m high, located above a radiator on the inside and an air brick on the outside).
Spraying this patch with anti-mould seems to have no effect, possibly makes it worse as it grows again in a few hours. See the picture - we scrapped off the wall paper as we though that it might help dry out, but has made no difference.
We are baffled as to the cause. Does anyone have any suggestions please?
It was removed amid this damp winter and air-brick ventilation was installed on external walls to help it dry out in the longer term.
But now, after it has been removed we are getting terrible white mould flaring up on one patch of the living room wall. The damp patch is on a wall from which the insulation was removed. The mould patch is about 1.5m high, located above a radiator on the inside and an air brick on the outside).
Spraying this patch with anti-mould seems to have no effect, possibly makes it worse as it grows again in a few hours. See the picture - we scrapped off the wall paper as we though that it might help dry out, but has made no difference.
We are baffled as to the cause. Does anyone have any suggestions please?
