Question

Nowadays there are fixed pergolas with a groove, and permanently installed slats are placed there all year round, and they provide mostly shade. Some say this is valid as sukkah roofing; I saw Rabbi Ofir Malka, and I heard from others as well. There are those who claim that this is just ordinary construction, that it counts as a ceiling, and is invalid on a Torah level. We can plainly see that people make this as a permanent feature of their yard and garden for privacy from neighbors. They sit there, eat there, and there are armchairs there all year round, and in their eyes this is regular construction in every respect. There is nothing temporary here at all, but rather a full-fledged ceiling, even if it is not fastened with nails, although when it rains it is not like a house. What is the Rabbi’s opinion on this matter?