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Slight cracks at top of wall just below ceiling


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Brother recently bought his first house so just going to give rooms a lick of fresh paint for now but living room has a few cracks at top of wall just below ceiling (will post pics in the comment section).

Looking for reasons as to why this happened and how to treat...was thinking scrape of loose paint, apply bonding plaster with render mesh, then top coat multi finish plaster and blend it into existing plaster?

Any other suggestions welcome.

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Is that an upstairs room? If so I would wonder if it was blocked gutters causing water ingress. 

 

The picture is quite shadowed so it is hard to say. Any damp would be coming from outside most likely so I would check outside.

 

Otherwise it might just be movement in the building, plaster has no give in it and cracks easily.

 

 

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It's a flat but he's top flat, that's what I plan to do see about anything blocking gutters etc, tbh I think the damp can be ruled out had another look tonight but appreciate the feedback about movement.  Any tips to dealing with it? You reckon Render mesh would help and once blended in at least be more hidden that the eye sore that's there?

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I'll get a picture of outside walls Tomo mate. These pictures tho...one with the skirting board showing is a partition wall separating living room from hall. Other pic is living Room and external building wall to the left of it and to the right the neighbouring flat 

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So I've had a look at the outside walls...front and back, what you guys reckon for the cracks? I see one of the bedroom walls has a bit of mould in the corner and can see water streak marks from gutter outside so that solves that, also see gutter at back of building isn't attached so will get on this. But for cracks any ideas guys? Been told to scrape away excess and fill the cracks with toupret flex then sand as they say this will cope alot more with movement in the building. (See comments for pics...)

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Mould inside bedroom probably caused by water streaks from the gutter/roof.  Best way to treat after gutter area inspected and fixed? Any special Paints or damp proof seals recommended?

IMG20241010100400.jpg

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