Help with rendered flower beds

[davball15]

Hi guys

having trouble with drainage / water marks in rendered beds (see attached photos)

will tanking paint on inside walls with some dpm and a solid couple
Of inches of hardcore / gravel at the base suffice and solve issues?

base of beds is just soil (ie no concrete) so understand no need for drill holes to aid drainage...?

cheers

 

[Bonni]

Looks like your copings don't have a drip groove. Even garden walls should have a DPC and a DPC under the copings. The mortar to bed copings should contain SBR.

Omit the drip groove, DPC's and SBR; welcome to the world of problems with garden walls.