In order to insulate the panel against the elements, it is necessary to prevent water from entering through the cracks or the wood. This step is final and we do not plan to reopen the panel for a few years.
Silicone is put between the wood and aluminum frames before screwing the window one last time, then hot glue is applied everywhere, in each hole that remains to protect the water and prevent its accumulation. It would be ideal to protect the wood with paint. It takes about a tube or two of silicone per panel, it is better to put more for it to lasts longer. Also, it takes about three or four sticks of hot glue approximately.