Skim Coat on top of old sand and cement render

[EBrant]

Hello

I am not a pro and wounder if someone can please help me with the following question.

I have a house built around 1950 an X council house, it looks like the walls were rendered rather than plastered. The render is very sandy (light yellow) in colour and quite flacky. Basically ir rubbed or scrated with a screw driver will revery to same and come off. That said left a lone it stays on the wall.

I want to know I can apply some PVA (or other primer) then put a skim coat over it? or would it be better to take it back to bare brick then bonding plaster (or hardwall) then skim (multifinish)

Thanks in advance
E Brant

 

[johnzo]

take it back to the brick .give the wall a good clean down .apply pva or even better thistle bond .then bond it and skim it, ..hope this helps ,,

 

[johniosaif]

When I work out what you're asking I will reply

 

[EBrant]

Thanks very much both for taking the time to reply.

As advised to be on the save site (after all I will be in the house for the next 20 years, so guess worth the extra to be sure) I will take it back to the brick etc..

Thanks again

EBrant

 

[malc]

sounds to me that your walls have been plastered in lime mortar. 2 coats of pva and skim.

 

[church]

One coat of stabilex and skim .