Abstract: A pre-fabricated construction panel (100) for use on an external surface and/or as part of a building or construction is provided. The panel comprises at least a first layer (110) which is at least partially provided from thermally insulating material having a first surface, said panel comprising at least a second layer (120), said at least second layer being provided from fiber cement board said second layer having a second surface facing said first surface, said first and second layers being connected one to the other by a spacing means located between and adhering to said first and said second surface, which spacing means provides at least one interspace (140) between the first and second surface, said at least one interspace having at least two openings to the external of said panel for enabling air to flow into and out of the interspace towards the external of said panel. The thermally insulating material means material has a thermal conductivity (lambda) less than or equal to 0.05 W/mK.

Abstract: A pre-fabricated construction panel (100) for use on an external surface and/or as part of a building or construction is provided. The panel comprises at least a first layer (110) which is at least partially provided from thermally insulating material having a first surface, said panel comprising at least a second layer (120), said at least second layer being provided from fiber cement board said second layer having a second surface facing said first surface, said first and second layers being connected one to the other by a spacing means located between and adhering to said first and said second surface, which spacing means provides at least one interspace (140) between the first and second surface, said at least one interspace having at least two openings to the external of said panel for enabling air to flow into and out of the interspace towards the external of said panel. The thermally insulating material means material has a thermal conductivity (lambda) less than or equal to 0.05 W/mK.