Garden wall, repainting

[motora2000]

Hello

We have a small exterior wall with peeling paint. Some bits of paint have fallen off themselves, the rest I reckon can fairly easily be scraped off.

I would like to repaint the wall and not sure of the best way to do this. I can see that under the paint is a layer of sand (render?) and under that are the small bricks and mortar.

Is it a case of scraping the remaining paint off, taking off the sand, then adding an undercoat and then a suitable topcoat? I am not sure what benefit this layer of sand brings. It is a little bit crumbly and can be scraped off easily.

Thanks – any advice much appreciated!

 

[Londoner2]

1) scrape off.
2) fill in where patches of render has broken off.
3) slap on pva to seal the wall.
4) Normal masonry paint (2 coats minimum)

 

[Nige F]

I think SBR would be better for 3)

 

[motora2000]

Thank you! I'll check those out.

 

[motora2000]

Hi

I am revisiting this, wondering whether I can do a bit of work over the Xmas hols.

I attach some photos. These are three bits of the wall where either the paint fell off or I scraped it off. The sand underneath is actually not all that crumbly, actually quite hard to take off. Most of the rest of the wall has a good finish I guess.

Ultimately, I'd like a freshly painted finish throughout.

On viewing these pictures, does the advice above change at all? Also, on Londoner2's reply above, what does fill in mean? Can you recommend a product?

Thanks...

 

[motora2000]

Hi

As a test, I have scraped off part of the wall as Londoner2 suggested - see attached! I am going to practice on a small part of the wall first!

I have got the filler, and some SBR as I heard that PVA wasn't as water resistant.

I am ready to do the filling, but how do I apply the SBR after that? The bottle talks about mixing with sand/cement etc, but now I am getting a bit outside my comfort zone! It's not just a case of painting on the SBR with a brush then painting over with masonry paint?

Thanks!