Spacer piece for fixing a layer of insulating material to a support such as a roof or cladding

摘要

Spacer piece intended to fit onto the shank of a screw or rivet for fixing a layer of insulating material onto a support such as a roofing pan, the said spacer piece being made up of a tube, the inside diameter of which is greater than the outside diameter of the shank of the screw or of the rivet, characterised in that the said spacer piece (7) has at one of its ends two slits (8) made along the generatrices of the tube (7) and emerging on the adjacent face so as to constitute a tongue (9) folded in the direction of the centre of the tube such that its edge is within the inside diameter of the tube. <IMAGE>