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How to prepare this house wall?

Discussion in 'Decorating and Painting' started by WabbitPoo, 18 Mar 2019.

  1. WabbitPoo

    WabbitPoo

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    One wall of a house is quite damaged by weathering. It LOOKS like its been painted over dirty surfaces in the past. WHat's the best way to proceed before painting it again? Do I have to scrape all that white off, seal the underneath and paint over, or is there an easier way (not another bodge!)? I can scratch a lot of it off with my nails, so its badly adhered to what's underneath.

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    Last edited: 18 Mar 2019
  2. KenGMac

    KenGMac

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    WabbitPoo, good evening.

    Suggest you have a look @ "Soda Blasting" it is in effect a little like Sand Blasting but no where near as abrasive or using the same high pressures used in Sand blasting systems.

    You can use a water pressure washer but, and there is a big but? you can / will introduce a load of water into the render, not what you want especially in the winter and when there is a possibility of frost?

    Soda blasting will remove the loose material fast, some areas of the paint will still adhere, a pole sander / scraper? but because of the blasting these stubborn areas will be [hopefully] small areas.

    When using the blasting it does cause a load of dust / debris, not advised on a windy day outside?

    Ken
     
  3. WabbitPoo

    WabbitPoo

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    Cheers. Never heard of it so I'll look it up.

    Scraping, pressure-washing or blasting, there's gonna be a hell of a lot of small white flecks of paint everywhere!
     
  4. KenGMac

    KenGMac

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    If you do the work in a snowstorm it will all just simply fade away??
     
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