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How to stop render failure?

Discussion in 'Plastering and Rendering' started by stats101, 19 Mar 2014.

  1. stats101

    stats101

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    On a report about suspected subsidence by my insurance company, there is a paragraph in the document which states:

    "The configuration of the cracking in the render on the rear is considered typical by the onset of render failure. This particularly occurs when a strong render has been applied to the face of the wall. The lack of flexibility within the mortar will cause it to crack, allowing water to penetrate and be trapped between the wall and the render. If allowed to continue, the eventual result is the failure of the render."

    In the room relating to the rear wall, there are several areas of internal cracks.

    Can someone provide guidance to what can be done in this instance to avoid full failure of the render.

    Thanks.
     
  2. ree

    ree

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    Well, do you have subsidence? Or some other kind of movement? What did the investigator/surveyor/SE say? What did they say about the internal wall cracks?

    Surely not only findings but recommendations were in the report?

    If you are seriously looking for guidance, why not include more info and pics of the areas in question?
     
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  4. stats101

    stats101

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    The conclusion was that it wasn't subsidence, instead the various/many cracks were down to a number of unrelated minor problems.

    The report was done via the insurance company, so is very limited in detail.

    I've attached pictures of the cracks in the rear bedroom which has been linked to the render:

     
  5. ree

    ree

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    stats101,

    You have posted pics (thank you) but i dont know what wall(s) they are on or if they tie in somehow?

    You still dont give enough info - why not fully quote or scan the insurance surveyors report but leave out identifying details?
    What "unrelated minor problems", please be specific.

    Could you perhaps post pics of the outside rendered elevation(s) and the whole of the interior wall with the window(s)?
     
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