Paint Bubbling after newly plastered

Discussion in 'Builders' Talk' started by kingblaze1986, Nov 6, 2019.

  1. kingblaze1986

    kingblaze1986 New Member

    Hi,

    I just had my whole house replastered. The builders gave the plaster around 15 days to dry before they use Leyland Trade Super Leytex matt paint as an undercoat. They then left this to dry for a week before putting on dulux silk paint. It's been around 6 weeks since all the painting was done and already the paint is starting to bubble and flake off.

    They have sanded down and repainted but same issue. They then sanded down and said they injected damp proof stuff in and then repainted, but yet again the bubbling has come back.

    Any ideas what the issue could be?
     
  2. kingblaze1986

    kingblaze1986 New Member

    Here's a pic of the problem
     

    Attached Files:

  3. wiggy

    wiggy Well-Known Member

    Still damp in that area, gravity is to blame.
     
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  4. Astramax

    Astramax Well-Known Member

    As above, paint will dry at a higher level first simply due to the fact heat rises. Bubbled up as still not completely dry and paint has sealed in trapped moisture. You need to fetch the paint off and leave the area exposed for at least a month to further dry out. Problem is the silk emulsion is not a breathable paint as is the Leyland paint, that's why it has bubbled after the silk was applied. Was the wall damp before any plastering was done?
     
    Last edited: Nov 6, 2019
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  5. kingblaze1986

    kingblaze1986 New Member

    so sand it down and leave it for a month after sanded?

    there was no damp in this room before the re-plastering as far as i know. The room had Artex Textured Finish throughout including ceiling, which was removed (no asbestos)... maybe thats why i couldnt see damp? it was then just plastered so no, no wall damp was done before plastering.

    i cant see any bubbling anywhere high on the wall. its only just above the skirting, everywhere else looks ok...
     
    Last edited: Nov 6, 2019
  6. jonathanc

    jonathanc Active Member

    Did they remove the skirting to skim? My guess is the plaster now breaches the dpc behind skirting board. Need to hack the plaster off the dpc behind skirting
     
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  7. koolpc

    koolpc Well-Known Member

    Highly unlikely. DPC would be much lower.
     
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  8. Astramax

    Astramax Well-Known Member

    Think it is just a case of more drying time required.
     
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  9. jonathanc

    jonathanc Active Member

    I only mention this because of my experience. 1965 built bungalow. Standard concrete floor with dpc below: no problem but some rooms had been skimmed and this breached dpc in the wall causing dampness in plaster. Of course may not be relevant here!
     
    kingblaze1986 likes this.
  10. kingblaze1986

    kingblaze1986 New Member

    Skirting was removed. I did a full house refurb, so they plastered and then put on new skirting.
     
  11. kingblaze1986

    kingblaze1986 New Member

    Mind you, now that you mentioned concrete floor the dining room kitchen and living room are all concrete floor. The room I have having the most issue with is the dining room, I have a little bit of bubbling in the living room and there is nothing in the kitchen as far as can see (can really check wall cause of kitchen units but areas that can be seen seem okay).

    The dining room has a radiator, but even with that on the floors are cold and it generally feels cold and wet in kitchen and dining.

    I did have dampness in the cellar and there was water seeping up from the ground onto the cellar floor but I put a air vent in and this seems to have fixed the dampness but only time will tell.

    I'm just trying to figure out the root cause of this. Do I call out a damp proof specialist or maybe a drain cleaner to do a cctv survey to check if my drains are okay?

    What you guys think?
     
  12. choppy111

    choppy111 New Member

    Sounds like your builder didn't mist coat the bare plaster
     
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  13. koolpc

    koolpc Well-Known Member

    Damp proof specialist. No. They will con their way into you having the walls injected etc.

    Just scrape off the paint. Let the wall dry properly for a couple of months.
     
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  14. kingblaze1986

    kingblaze1986 New Member

    what is mist coat? my builder got Leyland Trade Super Leytex matt paint as an undercoat as far as i know. But as i mentioned in my original post he did leave the plaster to dry for 2 weeks and this was in July/August when there was a heat wave spell. He left all windows and doors open too. then when he was happy he started to paint with Leyland Trade Super Leytex matt paint as the undercoat, left that to dry for another week and then he started painting with the dulux paint.

    all other rooms (4 in total and hallways) are fine. no bubbling. just dining room and a small area in living room close to dining room door is bubbling.
     
  15. kingblaze1986

    kingblaze1986 New Member

    whats the best way to dry the wall? i know in the summer i can open the windows and doors but what about in during this autumn/winter season?
     
  16. choppy111

    choppy111 New Member

    I've just realised your issue is just above skirting level and is all fine above, therefore thinking no mist coat is probably not your issue.
     
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  17. choppy111

    choppy111 New Member

    Dehumidifier
     
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  18. choppy111

    choppy111 New Member

    You shouldnt need a dehumidifier to dry plaster out though. It tends to fully dry within a week. There must be another underlying issue
     
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  19. jonathanc

    jonathanc Active Member

    I still think this could be damp rising up the wall: time for skirting off and a look behind I feel
     
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  20. kingblaze1986

    kingblaze1986 New Member

    yeh thats what i think that there is an underlying issue. hence why i am thinking maybe get my drains checked out, maybe a leaking drain is cause the wetness or rising up into the property especially under the dining room?
     

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