Exterior building wall insulation systems with hygro thermal wrap

An external insulation system for stepped application to a building construction, the system comprising:

• a layer of permeable or semi-permeable thermal insulation arranged onto the wall of the building, covered with a hygro thermal (HT) wrap consisting of three individually applied, climate-dependent layers of:
• an inner bonding layer arranged onto the layer of thermal insulation;
• a layer of reinforcing mesh arranged on the inner bonding layer,
• a protective layer arranged on the layer of reinforcing mesh, and wherein the inner bonding layer and the protective layer both comprise capillary active and hygroscopic components covered by a finish layer of material selected from the group consisting of:
• paint pigments, fillers, and wherein the inner bonding layer and the protective layer both comprise capillary active and hygroscopic components, to achieve water resistivity and to permit accelerated drying of the exterior insulation system;
• and
• wherein the layer of thermal insulation is selected from the group comprising:
• fiber board, open cell polyurethane foam, closed cell polyurethane foam, and expanded polystyrene;
• and
• wherein the polyurethane foam is arranged on both the front and rear sides of the fiber boards, to facilitate drainage and accelerated drying of the exterior insulation system.