Plaster not drying fully

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I think its failed , I'm not a expert in damp but that looks like old damp plaster to me , re-do is required or your going to have same problem to be sure
 
All of that plaster is new. The old stuff was taken off (he wall was taken back to the bare brick)

A damp course was put on and then it was replastered.
 
That's a salt problem. Either from the sand if it was rendered or the brickwork behind. Hack off tank to seal an salts in the brick work and Replaster with renovating plaster.

Don't be fobbed off with anti sulfate wash and a oil based primer to seal the new plaster. If it's done right it shouldn't need it.
 
Geordie1 said:
All of that plaster is new. The old stuff was taken off (he wall was taken back to the bare brick)

A damp course was put on and then it was replastered.
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Damp course is a waste of money if there's any damp coming in it coming from the outside that wher the problem is
 
Geordie1 said:
Had a company come 3 weeks ago and put a damp course in. It hasn't fully dried in 1 corner yet. Where it is drying, it is drying unusually, please see photo.

I have a decorator booked for this evening, as well as some skirting being fitted. Do I need to cancel them?

https://imgur.com/jP3Q5kX

https://imgur.com/iuEQeo0
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cancel the decorator and the fitting of skirting boards.
i would have the plaster cut off, hire a dhumidifer, dry the brickwork out, then have the walls tanked before you have them plastered.
i would not use angle beads on a damp course project.
 
carys said:
Yes m8 espeshely when ther injection liquid into stone wall what the point?if there's damp it comes from outside bad render leaky guttering etc
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So if the render is fine and so is the gutters/down pipes where will it come from then?
Also why do regs state a DPC must be installed on all new builds?

Anyone who knows what there doing wouldn't use injection method on wonky stone work.
 
Jgreenplastering said:
So if the render is fine and so is the gutters/down pipes where will it come from then?
Also why do regs state a DPC must be installed on all new builds?

Anyone who knows what there doing wouldn't use injection method on wonky stone work.
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Dpc in new builds whith cavity is difrent ball game to drilling holes in brickwork and pumping liquid in to them .Ifthe ground lower on outside render and guttering ok it should b dry if damp is raising up the best thing to do is get vent so the wall breaths a bit
 
You say it's only been 3 weeks ? If so then just let the plaster dry out any white stuff appears brush it off. It can take easily 6 weeks to dry as the render is not providing suction for the skim to dry.
 
Would it matter massively if the plasterer plastered onto a still wet bond?

I'm not happy with the job they've done. You can see the beading on the corner and he hasn't skimmed all the way up, so I'll have a line half way up the wall that you'll see once the painting is done.
 
carys said:
Dpc in new builds whith cavity is difrent ball game to drilling holes in brickwork and pumping liquid in to them .Ifthe ground lower on outside render and guttering ok it should b dry if damp is raising up the best thing to do is get vent so the wall breaths a bit
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Haha nonsense!
 
I'd get the company back in to have a look in a view to redo the lot.
Just out of curiosity have they hacked it all back and redone the lot in the same day?
 
Bloody hell fellas if you have dealt with damp you will know that it can take some time to dry especially if this area has little air flow by it and is in a dark part of the home
 
gps said:
Bloody hell fellas if you have dealt with damp you will know that it can take some time to dry especially if this area has little air flow by it and is in a dark part of the home
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Takes a year they say if it not tanked y not put a hit miss vent ther
 
zolco said:
I'd get the company back in to have a look in a view to redo the lot.
Just out of curiosity have they hacked it all back and redone the lot in the same day?
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Took it back to the bare brick Saturday. Injected wall and put something on it (bond?) Saturday. Came back Sunday and plastered it. 3 weeks ago tomorrow.
 
jamesthefirst said:
Do you ever use just sand & lime plaster mix @carlos?
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Never myself. If we work for a builder and its spec. It voids the warranty.

As I understand the waterproofer in the backing coats works with the cement to waterproof the render. That's why it's always spec to do 3-1 mix. If it's not strong enough the waterproofer won't work.

The only exception I know to is this additive
Link Removed

Which works with 6-1-1 but it's still not a true sand lime mix
 
It needs redoing, out of curiosity how did you come to choose this firm? What did they tell you was the problem? How much and did you get any other quotes or diagnostics?
 
If it was done on a saturday and sunday then I'm guessing it was done by someone who doesn't know what theyre doing as surely a good outfit wouldn't be working the weekends. Unless they're absolutely stacked out obviously. Having said that I've got to work all this weekend so I must be really s**t or really busy.
 
flynnyman said:
It needs redoing, out of curiosity how did you come to choose this firm? What did they tell you was the problem? How much and did you get any other quotes or diagnostics?
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What makes you say this? The rest of the wall (about 2-3 metres of it) looks fine, though they didn't tell me that they should have taken up to the ceiling so there isn't a line half way across my wall.

I googled plasteres in my atea, 3 companes from 1St page of google. Thsee giy's looked reputable. Got 3 quotes from 3 separate companies and went with these guys.
 
Geordie1 said:
Took it back to the bare brick Saturday. Injected wall and put something on it (bond?) Saturday. Came back Sunday and plastered it. 3 weeks ago tomorrow.
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Ok so just let it dry man, it takes time so stop worrying make sure the area is well ventilated
 
FFS just let the plaster dry, why people are guessing at what's wrong I have no idea, I will say again if you have dealt with damp jobs you know it can take several weeks sometimes 6-8 for the finish to dry as the backing coat offers no suction so therefore it just sits there
 
No 1.
Who carried out the work.

No 2.
Did they issue a guarantee.

No 3.
Did you get writing what would be done.

No 4.
How much did you pay.

No 5.
From the looks of the pictures it doesn't look like it's done properly, I won't go into detail but your first port of call should be the people who done the job and see what there explanation is.
 
Jgreenplastering said:
No 1.
Who carried out the work.

I'd rather not say

No 2.
Did they issue a guarantee.

Yes

No 3.
Did you get writing what would be done.

Yes

No 4.
How much did you pay.

£620 +VAT @20%

No 5.
From the looks of the pictures it doesn't look like it's done properly, I won't go into detail but your first port of call should be the people who done the job and see what there explanation is.
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They're coming on Monday to take a look. I just wanted some extra help from some guys in the know.
 
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