Hi. I have an investment property up the coast and it is about ten years old. Recently our tennant has moved out due to mould growing up the walls in the bedrooms and in
the wardrobes. We have had an inspector come out and find the cause of the problem. It was caused by rising damp due to poor sub floor ventilation, ground moisture and inadequate or no waterproofing in the bathroom and laundry. I have fixed two of these problems leaving only the waterproofing in the two rooms. Now this where the problems start. The yellow toungue flooring that is under the floor has had water leaking on it for quite some time. The boards are swollen quite severly and have turned black. So this brings me to my question. With this damage to these boards do i need to replace the boards or are they good enough to stay? If anybody could help me this would be great thanks