Repainting badly painted brick wall

[jimjamjak]

The rear part of my Victorian house is built of brick.

Regrettably, some years ago someone decided to smear it with concrete slurry (0-3mm) and paint over the top. It then went pretty green with algae. Prior to selling to me, the owner repainted in a plastic masonry paint, which has more or less failed and looks shocking.

Stripping back to the brick is impossible. The concrete slurry is firmly bonded and attempts to lift it off result in cracking the bricks.

So, I'm faced with a repaint. Currently my plan is to:
1. manually scrape off as much of the masonry paint
2. remove all the nails, screws and other protruding things
3. clean with a pressure washer and sugar soap
4. do any necessary repointing and filling
5. sand
6. paint with Sandtex Ultra Smooth Masonry paint (I doubt there is any breathability left in the wall given its previous "treatments")

Anyone see something wrong with the above approach?

 

[Wayners]

Sounds like you need a surface grinder with vacuum attachment and remove the surface back to brick.
Repoint bricks.
Storm seal

You can hire kit or get firm in to do it.
Going to need tower or scaffolding

 

[robinbanks]

Bead blast it? Jet wash and render it?

 

[Wayners]

This sort of thing.