brightspark
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- yarm stockton on tees
wasnt alkali resisting primer was it zinser stainblockHad this issue behind a sofa, root cause was moisture in the room due to a weeping rad pipe buried in the front room floor under carpet.
Once that was sorted, dried, cleaned up..... I put some dogs danglies damp proof fungicidal something paint over the skirting and the wall, cant remember the name of it, but nothing has come through paint or paper since.