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How should I clean this roof

Discussion in 'Roofing and Guttering' started by EastBelfastian, 1 May 2020.

  1. EastBelfastian

    EastBelfastian

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    This is the roof outside my bedroom window. I was thinking of pressure washing it - but should I use some pre-treatment? Should I pressure wash it at all? I would like to do a super duper job on it if I can!


    Open to tips and suggestions
     
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  3. noseall

    noseall

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    Leave it alone.
     
  4. Johnny Allround

    Johnny Allround

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    If you really need to it will brush off when it’s dry.
     
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  5. Nige F

    Nige F

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    As per Nose ... don't wash it , you'll get water forced in round those velux. Modify a brush - maybe a drain brush on some rods ? then brush down from the window and pull down from the ground. DO NOT be tempted by ANY roof cleaning/coating scams ! (y)
     
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  6. Vinty

    Vinty

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    Last edited: 2 May 2020
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  8. noseall

    noseall

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    I'm seeing Marley 'Bold Roll' tiles - as rare as rocking horse sheite. You would have to be a total nutter to mess about with that roof.
     
  9. catlad

    catlad

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    Those moss killer spray on products may damage the alloy skylight flashings
     
  10. Vinty

    Vinty

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    More likely those tiles are redland regent, easy enough to get. https://redland.co.uk/products/profile-range/regent
     
  11. Vinty

    Vinty

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    Years ago our firm used to carry out storm damage work for insurance companies.
    After a storm we would get sent to jobs that included repairing leaking Velux type skylights.
    One of the most common causes of leaking around these type of skylights was the flashings which go underneath the tiles getting blocked with moss causing rainwater to overflow underneath the tiles onto the felt below.
     
  12. catlad

    catlad

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    Yes I know! I was only making people aware that some of those chemicals are very corrosive.
     
  13. DIYnot Local

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