Abstract: Method for manufacturing a multilayer insulating panel having a cellular core comprising a honeycomb structure based on plastic filled with foam and two external layers of nonexpanded material, the said method comprising the following steps: —one of the external layers (3) of the panel is introduced into a former; —the honeycomb structure (1) is placed on said layer (3) and the second external layer (3?) together with a composition (2) comprising a foaming agent that is poured are also introduced in the former; —the composition comprising the foaming agent is expanded; —the insulating panel is removed from the former. Panel obtained according to said method and uses thereof.

Abstract: An insulating panel including an integrated assembly system allowing the panel and at least one other complementary panel to be assembled in at least one dimension in space. The panel and its assembly system are of a form that, when the panel and complementary panel are assembled, they delimit with their assembly system at least one cavity suitable for housing a seal, the cavity widening at least partly towards the inside of the panel.