black ash

  1. V

    Hello - and 1930s black ash mortar advice!

    Hi all I’m a decently skilled DIYer looking for some advice... I have a bedroom (outside) wall with large patches of blown plaster in my 1930s London house. The background is black ash mortar (horrible stuff!) that isn’t damp anymore but is very crumbly and dusty. After loads of research I’m...
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