A combustible heat source (2c) for a smoking article has a barrier (6) affixed to an end face thereof. A thermally activated adhesive (8b) is provided between the end face of the combustible heat source (2c) and the barrier (6). A moisture activated adhesive (10b) may be provided between the end face of the combustible heat source (2c) and the thermally activated adhesive (8b). A method of manufacturing a combustible heat source (2c) having a barrier (6) affixed to an end face thereof comprises: providing a thermally activatable adhesive (8a) between the end face of the combustible heat source (2b) and the barrier (6) affixing the barrier (6) to the end face of the combustible heat source (2b) and heating the combustible heat source (2b) with the barrier (6) affixed to the end face thereof to activate the thermally activatable adhesive (8a).
