Had some issues with our rooftop balcony in our new build flat in Greece. Some issues with the roof drains and water getting into the wall and ceiling through the dodgy drain set up and unsealed glass / marble viewing area. We have our inside on the third floor with a balcony and then an additional roof garden above. Noticed damp on lower ceiling above our lower balcony which is what caused me to investigate the roof garden above. I noticed the outside of the roof garden wall had damp and cracks and the render was effectively blown and cracked in the area they chipped off this morning. You can see quite a large crack in the concrete. They've patched it what looks like some sort of filler.
Is this a structural crack? Should I be concerned about the crack and also the repair?
Is this a structural crack? Should I be concerned about the crack and also the repair?