Thermal shell, in particular for a building

Thermal shell for a building, apt to constitute a multi-layer system formed by three integral elements comprising, respectively, from the outside towards the inside:

• an external peripheral wall/casing with the function of thermal insulating wall;
• an interspace filled with air to be conditioned;
• an internal wall/casing with the function of heat-radiating wall/casing;
• including alternatively
• a covering structure (10) positionable externally around an existing building (1), or part of an existing building (1), said covering structure (10) comprising, proceeding from the outside towards the inside of the building (1):
• a coating (11), an insulating layer (16) and an interspace (12);
• said interspace (12) containing air and forming a closed and isolated room with respect to the surrounding environment;
• means (13) of thermal conditioning of the air contained in said interspace;
• or
• panels (20) applicable as external walls in the construction of a new building, said panels (20) having a multilayer structure that includes, from the inside towards the outside of the building, a first layer consisting of a heat-radiating cladding (22), an interspace (23), an insulating layer (24) and a structural layer (25).