Insulation building system for a building structure

An insulating building system for a building structure, said system comprising:

• an assembly having a first side and a second side opposite of said first side, wherein said assembly comprises
• a plurality of self supporting insulation panels each made of a mineral fiber wool material having a density between 50-125 kg/m3 and a compression elasticity modulus of at least 500 kPa, when measured parallel to the width of said insulation panel, each insulation panel having joining profile contact sides;
• at least one frame profile;
• a plurality of spaced apart joining profiles extending from at least one of said at least one frame profile,
• said plurality of joining profiles each having a first and second side surface which are abutted by a first and a second joining profile contact side, respectively, of insulating panels which are disposed on each side of said plurality of joining profiles,
• wherein said first and second joining profile contact sides of said insulation panels are provided with a shape matching the respective first and second side surfaces of said plurality of joining profiles, such that the insulation panels are retained between two of said plurality of joining profiles;
• and
• wherein the insulation panels provide lateral support to the joining profiles such that the bending amplitude and the buckling length of the joining profile are reduced;
• whereby the assembly provides a self-supporting and load bearing building structure.