The top picture looks like the after. I don't think it's felt though. Looks too thin. Doesn't mater as, in reality, a two year old picture is pretty meaningless.
Given the state of the brickwork, tiles and coping I'd say it wasn't just a roofing issue. I would suggest that the whole area needs to be looked at including the other side of the wall.
Even in those pictures the pointing, beddings and flaunchings are really poor so, after two bad winters, it's safe to assume that their considerably worse.
I would also render the internal wall rather than plaster it.
There is always scope for misinterpretation.
If my posts can be interpreted in two ways, one that makes you feel angry and one that doesn't, I meant the latter.
Everyday is an opportunity to learn something new.