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Glass block cracking in mortar joints

  • There is insufficient allowance for structural movement around the glass block panel

    How to repair

  • Wall has inadequate strengthening to withstand the imposed structural loading 

    How to repair

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Glass block crumbling mortar

Glass block stains

  • Alkaline run-off from cement mortar such as an external wall or where the glass block wall is part of a shower

    How to repair