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rendering denseblock

Discussion in 'Plastering and Rendering' started by DIYsaster, 19 May 2007.

This topic originated from the How to page called Rendering.

  1. DIYsaster

    DIYsaster

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    Hi, i'm new to this site. was looking for tips on rendering a raised garden bed wall i've just built out of denseblock. Its not a massive wall (20ft by 1.5ft approx)but a few pointers would be appreciated. The wall will be retaining soil for bedding plants so i was going to render both sides of the walls?! would a 3-1 mix do the job? is using sharpsand going to make my life easier? am i wasting my time!!!? thanx
     
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  3. brist

    brist

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    4-1 with some opti-mix
     
  4. noseall

    noseall

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    .....and use PLASTERING sand.
     
  5. DIYsaster

    DIYsaster

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    cheers - any more tips? never done this before!!!
     
  6. noseall

    noseall

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    oh dear.
     
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  8. DIYsaster

    DIYsaster

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    rendered inside of wall, didn't do too bad a job, decided just to paint outside tho!!!!!!!! ;)
     
  9. nwhessian

    nwhessian

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    I have done similar, but i didnt see the need for redndering internally.
    Just plenty of black jack for me!
    Best to add a waterproofer to the render mix, and definately use plastering sand.
    Two coats, scratch then finishing coat.
    Wet the surface up a load before applying too,
    and even wet up with some PVA, cant do any harm?

    (by the way this is a joke)
    I think i read somewhere on this forum a few times that PVA shouldnt be used on external rendering?
    But thats all just popy cock! I use PVA for everything, its brilliant stuff!
    You can even make collages with it like when you were at primary school!
     
  10. scaper

    scaper

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    i was told pva only in the second coat, otherwise it creates a barrier so water is not absorbed and therefore doesn't bond.
     
  11. dazzer1971

    dazzer1971

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    Hey theres a first time for everything!! :rolleyes: g
     
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