JOINT FOR COMPOSITE PANEL

摘要

The invention relates to a joint for a composite panel, the panel comprising two metal faces with an insulating material in between, a tongue portion (5) at a first side face and a groove portion (3) at an opposite second side face of the panel, wherein tongue portion (5) and groove portion (3) of adjoining panels engage each other on assembly to form a joint between the adjoining panels and wherein locking means (10) are provided in the joint by means of which tongue and groove portion (3,5) are locked with respect to each other when the locking means (10) in the joint is heated beyond a certain temperature.