My house is built on split level. The back wall of the lowest floor is retaining the front garden etc. These brick retaining walls have been painted but are flaking off and lumps underneath the paint are widespread. When you scrape the lumps off they are powdery. There is also a damp odour.
Is there any way of sealing the bricks prior to repainting and is so what preparation would be needed. Somebody suggested PVA?
The way to deal with this is, to dig away the front garden to create a space in front of the wall, down to foundation level, or to a point 5 feet below the floor of the room.
Then build another wall to hold the garden back.
It will help if you fill the space between the new wall and the garden with clean stones, to create a French drain to keep any ground water away from the home.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!