Abstract: A method of adhesively joining two elements by an adhesive layer without gas inclusion in the adhesive layer, wherein an adhesive layer is applied over an area of a surface of a first of the two elements and channels are provided in the adhesive layer for passage of gases therein. An opening around the area of the adhesive layer is in communication with the channels to form a gas escape system so that when the elements are joined together the gases can escape from the adhesive layer via the channels and the opening.