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External Thermal blocks - will they need painting ?

Discussion in 'Plastering and Rendering' started by aro-rat, 27 Jul 2017.

  1. aro-rat

    aro-rat

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    Hello experts

    the final leg of our house renovation is building a 5m x 2.5m detached utility room, using thermal blocks (internal & external with cavity insulation inside).

    As the utility/yoga room will stick out like a sore thumb we are looking to make it blend into the garden environment with batons and then vertical or horizontal wood strips.

    Question...

    I dont think we need to render the outside blocks, do I need to waterproof them with external paint before putting battens / wood strips up ?
     
  2. Alastairreid

    Alastairreid

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    No render required, the cladding will be sufficient.
     
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  4. aro-rat

    aro-rat

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    If we are not rendering, should I ask the builder to build the outer shell with concrete blocks and thermal blocks inside?
     
  5. Alastairreid

    Alastairreid

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    Thats a choice thing but i would prefer dense concrete blocks for my outer skin..they will hold your battens much better than thermalite.
     
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  7. aro-rat

    aro-rat

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    Thank you sir, I have asked for that.
     
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