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Sealing interior stone wall.

  • 12-02-2021 1:45am
    #1
    Registered Users, Registered Users 2 Posts: 453 ✭✭


    have a small shed outside which has old stone walls. I want to use it as a store. the old white mortar/plaster is falling off. It has no dampness. If I remove all the plaster is there something I can paint the walls with to stop loose mortar from falling down? I don't want to go to the bother of replastering it due to cost and time. Would polybond be suitable? I don't intend painting it.


Comments

  • Registered Users, Registered Users 2 Posts: 31,141 ✭✭✭✭Lumen


    Don't seal mortar, that's how the walls breathe.

    If the mortar is loose then it needs repointing.


  • Registered Users, Registered Users 2 Posts: 453 ✭✭nokiatom


    Lumen wrote: »
    Don't seal mortar, that's how the walls breathe.

    If the mortar is loose then it needs repointing.
    someone suggested white washing it. Would that prevent the wall from breathing?


  • Registered Users, Registered Users 2 Posts: 2,718 ✭✭✭ARGINITE


    White washing would be breathable


  • Registered Users, Registered Users 2 Posts: 31,141 ✭✭✭✭Lumen


    nokiatom wrote: »
    someone suggested white washing it. Would that prevent the wall from breathing?

    Limewash will be fine but it won't hold in loose mortar.


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