Advice needed please

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Benmay

New Member
Hi first time here and looking for some knowledge.
This discoloration has appeared and when we painted the ceiling 2y ago it was clean no marks etc...
The house was built in 1900
and a terrace
20221210_155931.jpg
 
Hi first time here and looking for some knowledge.
This discoloration has appeared and when we painted the ceiling 2y ago it was clean no marks etc...
The house was built in 1900
and a terrace
View attachment 72622
Water in the paint mightve reactivated some sort of old stain.

Use stainblocker such as Bloxxit and repain the ceiling
 
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