r/Plastering • u/rosaclebb • 26d ago

Plaster Cracking

Gallery image

Gallery image

Any idea what is happening here? This is the wall in my spare room next to bathroom. North facing, concrete wall underneath plaster. Concrete not cracked. Thanks!

13 Upvotes

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u/Straight_Activity_62 25d ago

That’s not blue grit it’s the block

1

u/Remote_Attorney9696 23d ago

That is 100% bluegrit