Damp proofing products?

[rudeboy]

Hi me again, same wall - further down.. (Lintel post a few days ago)

The wall has been a bit moist, but cleared for rising or penetrating damp.
However it bit still have limited ventilation in a cold corner so advice is to tank the stonework and re-render with waterproof additive.

Any suggestions for products? Damp man (not literally) said they use 'Vandex'. Also on an old stone wall what sort of sand:cement mix would be best?

 

[JerryM]

Best tanking i've come across is K11 by Sovereign. Their office would advise on local approved contractors for quote (01229 870800). It's simple and quick to apply.

On the render i use plastering sand & cement with water proofer 1st coat 3:1 ~ 10 mm thk 2nd coat 4:1 ~ 8mm thk. then skim with finish plaster.

 

[rudeboy]

Thanks Jerry, a great help. Getting it all patched up now