Have been asked to look at rendering a whitewashed brick wall that is spalling. It's a freestanding external wall, no buildings either side.
The bricks have been de-facing for some time and are getting worse so the owner wants a cosmetic revamp in the form of a flat coat render... finish coat over a scratch coat.
It's a problem I see a lot and wondered the best method of going over this with render and ensuring that the blowing does not continue in the future to ruin the new work.
The wall is topped with soldiers (in black, atop standard reds) and I was thinking about putting a run of coping stones along the top with overhanging drips to keep water away from the render.
What else can I do to guarantee that the render doesn't start blowing away in the future... as has happened in my own garden (grrrr)?
Aside from the copings, any additives / pre treatment recommends?
Tnx deano.