Good afternoon, forum member!
It is interesting to use aluminum pergolas with rotating slats. Manufacturers promise full protection from rain and good wind resistance.
Is it so in practice? Are the slats really completely airtight when closed, or are there problems with leaks during heavy rain? How does she behave in a gusty wind?

Hi there!
You're right, manufacturers often promise a lot, but for Lousol and other quality aluminum louvered pergolas, the performance is generally excellent.