Patent ID: 6009679
Filing Date: 2000-01-04
Classification: E04B,E04C

Abstract:
A wall element for wooden buildings, the wall element comprising a transportable assembly of a number of board members (11, 23) of uniform length fastened side by side to transverse lath elements (12, 13; 24) on the inside of the board members in the proximity of mutually flush end edges of the board members, the opposite side edges of the board members being designed with cooperating engagement members, characterized in that the engagement members between two neighboring board members form a labyrinth seal (17, 23a) with a continuous pressure-reducing channel from an exterior to an interior of the board member, said pressure-reducing channel having at least two series continuously connected pressure-reducing chambers (20-22; 23b-23c) for wind load on the exterior of the board member, which labyrinth seal forms against the external side of the board member a drainage slit (17a, 23d) for removal of water collected from the pressure-reducing chamber (20, 23b) situated nearest said external side.