There's a big house by me that's being hacked off and redone. It's all old stone walls a foot thick, no dpc and lime pointing holding it all together. It was covered in unpainted sand & cement done in the last ten years I'd say before. Every time it rained and dried it was like humpty dumptys she'll after the poor sods fall.....all crazed and cracked to ****! So in their wisdom what have they learned...? Nothing it seems as sand & cement is going back on with no primer, no mesh, I mean wtf??
A lot more traditional render jobs should chuck a quid on for a meshed scratch coat at least, even if that's as modern as it gets. Trouble is for something so easy to apply and effective most trad spreads think your on about metal.
The suitability of s&c on the building is a whole other story.