Attention claim (I have no practical experience yet): A completely closed venetian blind, especially with CDL slats or similar in a guide rail, is just as resistant to wind as a roller shutter. Or rather, at wind speeds that would tear such a venetian blind out of the rail, thick branches are already flying around that would also damage a roller shutter. If such storms are forecast, you can proactively raise the venetian blinds manually. In any case, I will not install a wind sensor for now. Maybe next year I’ll be complaining about it here.