Some of the carport vertical wall cavities (in the 1st below picture) readily allow rainwater to drip down the inside of the carport western wall
A small amount of cement needs to be applied at the base of each of the 12 vertical air/light cavities, at a 5 degrees (approx) angle leaning down towards the grass area outside (prior to the paintworks scheduled for this January) to overcome these inner wall rainwater leaks

Some of these cavities allow rainwater the penetrate the besser blocks at the base of the vertical cavities.  Applying a small amount of cement will also seal against existing rainwater penetration of these besser blocks

Below are four of the worst affected vertical wall cavities