The third bedroom has been stripped and re-rendered with sand/cement scratch. When this was happening, some tiles fell off the wall in the ensuite bathroom, revealing that behind the tiling is black mould of some sort. How it’s growing behind the tiles is beyond me. The Saniflow macerator also decided to have conniptions, leaking water over the floor.

Looking along the outside wall from the bedroom side of the bathroom, it’s evident that there’s about 20mm of bonding running behind the bathroom, same as the bedroom itself. I’ve told the builder to strip the interior of the bathroom – everything goes, the wall gets scratch coated, pipes and electrics get run in for future use, and we close the door (after it cures).


What has become evident over the last few weeks is that when this property was last touched, the person or persons carrying out the work had a love of bonding material that goes beyond what any person should have. Every wall has been coated in it, 20 – 30 mm thick, with no scratch coating in place. Every room has had damp issues, which we’ve been rectifying by stripping the walls completely, and installing mechanical ventilation (aka air vents).

This pattern continues in the kitchen, which had supposedly been tanked. The plastic membrane is on the wrong side of the wall, and moisture has wicked up the bottom 30 cm of the wall above the engineered oak floor (and I’m now wondering what the state of the wood is). The wall is concrete brick -> bonding -> foil -> thermal insulation -> plasterboard -> plaster (and not a skim coat, 10mm or more), and both the plaster and the bonding have mould or other issues.

The saga of doom continues
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