rendering old garden wall

[ianml123]

i've got to render a garden wall its damp and has had a thin re4nder many years ago mostly cement by the looks of it. i've scraped off what paint i can, some just peeled off,somes too stuborn to get off. can i stiil render over the the existing paint, maybe coating first with pva. and what sand cement ratio is best and what addative. any advice would be appreciated,cheers

 

[plstering]

hi m8 im in kent too bud mite vbe werth me poping over too have a look for you and give you some advice on it it you want text me your addres post code and ill be glad too try and help you out the best i can
its hard too visulise it
jon 07536957847
have you tryed a jet wash to help clean it up
you can use a sbr slurry then top coat it
or use weber rend aid then ocr one coat sponged same as sand and cement render
or even use a coloured render like weber pral m ill be glad too show you the colour chart and diffrent finishes you can choose from
im in maidstone