Balcony solar kits are popular in Germany which are a more legit version of this.
The main thing I would be nervous about is the panels are claimed to be "rated for 120km/h winds". Presumably thats if they are bolted down? Just laying them down loose on the roof seems like a bad idea.
Yeah I came looking for this comment. I’m in Florida, USA where high winds are the norm. A big shingle sitting there not tied down would flip real quick.
The main thing I would be nervous about is the panels are claimed to be "rated for 120km/h winds". Presumably thats if they are bolted down? Just laying them down loose on the roof seems like a bad idea.