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Discussion in 'Plastering and Rendering' started by markyyyyyy, 19 Jul 2020.

  1. markyyyyyy

    markyyyyyy

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    I've just been removing wallpaper and underneath the plaster skim there is something that looks like a gluey plasticy sheet?

    IMG_20200719_200647064.jpg

    What is it?

    Do I need to remove it before skimming?
     
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  3. mattylad

    mattylad

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    photo?
     
  4. markyyyyyy

    markyyyyyy

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    Above
     
  5. KenGMac

    KenGMac

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    markyyyyyy, good evening.

    Looks like a layer of Polystyrene "insulation" was used to [hopefully] keep a cold wall "feeling" warmer.

    Ken
     
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  7. markyyyyyy

    markyyyyyy

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    Hi Ken. Thanks! Should I just it back to where it's flat and just skim the lot?
     
  8. KenGMac

    KenGMac

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    markyyyyyy, good evening, again.

    There are / were in general two types of this material.

    1/. A roll of polystyrene was / is available, you glue on to the wall

    Or.

    2/. The wall paper had this material pre-fitted and was applied as a normal but thick wall paper.

    If you are removing all the paper probably best to remove the polystyrene at same time it is a well known spreader of flame and produces a toxic smoke when ignited. By now there is a high probability that the glue line has / is failing and in my opinion getting back to a solid plaster is no bad idea, also the original plaster will be [hopefully] fairly streetlight both ways and you will not have to allow for any bulges due to the polystyrene ?

    Ken.
     
  9. markyyyyyy

    markyyyyyy

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    That's great thank you Ill try to remove it all, even if it's a bit of a pain! Cheers
     
  10. mattylad

    mattylad

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    soz the photo wasnt showing when I first looked.
    What Ken said... :)
     
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