Revisions log for Answer #2224

First, at least the lower belt fastening corrugated board should be supported (or better – all). Otherwise, with this fastening, these hooks will sag down and the facade will settle.

Secondly, you need to ensure air movement throughout the facade, including the inner half-waves of profiled sheet. Then the hooks will get something like this – _|_| where the first bend – for foam plastic (it is inserted there, I understand correctly?), The second – fixing crates under the profiled sheet (in the project – strip 40x4).

Third, I would change the strip on the profiled tube, such as 40x25x2. thinner – is not worth it, not the fact that the thin will last the whole life of the sheet. Fastening holes will still rust, although with a reasonable treatment this process is not fast. Profiled pipe will give transverse stiffness, otherwise you will get an accordion.