Patent ID: 8776467

Claim:
A construction material for a climate envelope of a building comprising: a first outer layer, directed to an outside of the building, a second inner layer, directed to an inside of the building, a plurality of intermediate layers arranged between the first outer layer and the second inner layer, wherein said intermediate layer, in a direction from the outside of the building towards the inside of the building, comprises an i) insulating material ( 2 ), ii) an air gap ( 3 ), iii) an outer space ( 4 ) filled with at least one of air, liquid, and solid material, iv) a PCM material ( 5 ), v) an inner space ( 4 ) filled with at least one of air, liquid, and solid material, and vi) an additional layer of insulating material ( 2 ), and an air intake ( 6 ), and an exhaust air channel ( 8 ), the air intake ( 6 ) and exhaust air channel ( 8 ) enabling air circulation in a continuous path through said construction material in through said air intake ( 6 ), via said air gap ( 3 ), and out through said exhaust air channel ( 8 ).