Unfortunately there is the misconception that Monolithic Plaster Cladding just leaks for no reason which is not the case.
The architectural design of a property particularly with Monolithic Plaster Cladding will dictate what and where the particular attributes (risk areas) are. It is very important that your building inspector is suitably qualified/experienced to be able to identify these areas.
Basically the higher the complexity of design ie multiple stories, internal decks, multiple roof planes, internal gutters ect the higher the risk.
A property can have a good level of weather tightness but still have a HIGH RISK weather tightness assessment.
One of the main risks/considerations with monolithic plaster cladding is if remedial work is required currently or in the future the remedial work should be carried out by LBPs (Licensed Building Practitioners) to current building regulations which includes but is not limited to the exterior cladding being installed over a cavity system which can have a significant effect on the cost of remedial work if it were required. If a property does require remedial work it is up to the LBP (Licensed Building Practitioner) what if any work they are can or are willing to do without going through council which can have a significant effect on the cost of remedial work.
So why would you even consider buying a property with Monolithic Plaster Cladding?? The reality is properties with Monolithic Plaster Cladding are significantly cheaper and more affordable than properties with traditional cladding but there are inherent risk as previously identified.
It is very much a risk/reward scenario and it is our job to identify what those risks are so that you can make an informed decision on the property.