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    • MRSB
    • By MRSB 9th Feb 18, 8:57 PM
    • 53Posts
    • 7Thanks
    salts on plaster - treat or remove plaster?
    • #1
    • 9th Feb 18, 8:57 PM
    salts on plaster - treat or remove plaster? 9th Feb 18 at 8:57 PM

    We've had a slow water leak in our concrete floor, the moisture has spread up our walls and we have various places low down where the paint is bubbling and salts are present.

    We have had differing opinions from surveyors amongst other 'professionals' as to what the correct course of action is to rectify this. This is partially because we live in a 1970s house, with hollow clay block inner walls, with cement/sand render and a plaster skim.

    Some say we should knock off all the plaster and sand/cement render that is affected, because once the plaster is contaminated it is going to stay that way and we will never get a good decorative finish in those areas as they will continue to draw moisture from the air and create salts. But in trying to get the plaster and cement/sand mix off the walls, we are apparently at very high risk of breaking the hollow blocks, which would then have to be replaced and could be a very big job.

    Some say we should just put a neutralising anti-salt coating on the areas contaminated and decorate with breathable paint, so that we don't have to disturb the hollow bricks whilst removing the sand/cement and plaster.

    We have little building knowledge and have no idea which option is best, so any advice would be very gratefully appreciated! I have read up online and again there are differing opinions, but we are very keen to try and get this right first time if possible.

    Thank you
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