Help needed with rendered walls!

[Spash]

Hi
I am very new to this forum. Please bear with me.
2 years ago we had our garden almost rebuilt. We chose to have the walls rendered, then painted with masonry textured paint (we used a sealer first). Again, same as this time last year, the paint is peeling off. I was out there yesterday scaping the loose off and there seemed to be loads of sand coming off too.
We had this done professionally, so it wasn't a cowboy job. Someone said if the sand is coming off so much that it could have been applied using the wrong mix!
I have been in touch with the builder, but he says he did it properly!!!
Can anyone help??

 

[diyisfree]

Is the wall a retainer ? In other woords is the earth banked up behind it ?

If it is and no barrier was put behind (visqueen or whatever else your builder chose) then the damp from the earth will be penetrating it causing the paint to peel.

 

[Spash]

some are retainers but others not, but all the walls have peeled?

 

[Mikepeters]

Lime based, breathable spray on wall coating.... if you find youtube there are a few such examples from the likes of kkhhoona
Hope this helps.

 

[Spash]

Many thanks. Very helpful