Not sure about that - how would you know when the wall is at its 'driest'?
Clearly the local planning department expects you to either keep, or maintain with, materials which are not fit for purpose, just for the sake of 'appearance'. If that's the case, ask them if they would like to contribute to the cost of re-capping the walls with the same bricks, on a regular basis after each winter.
Clearly the local planning department expects you to either keep, or maintain with, materials which are not fit for purpose, just for the sake of 'appearance'. If that's the case, ask them if they would like to contribute to the cost of re-capping the walls with the same bricks, on a regular basis after each winter.