A method of manufacturing building-wall flexible cladding (12) for a wall of a building so that a cladding outer surface of the building-wall flexible cladding (12) matches or substantially matches a textured wall surface of the wall of the building. This is first achieved by selecting the wall to be modelled (S101) and forming an impression of the wall (S102). An absorbent flexible substrate (18) is provided (S103), and a wet mixture (24) created (S105) and applied to the substrate (18, S106) to form one or more tiles (24a). The wet mixture (24) is textured by applying the impression so that the cladding outer surface corresponds or substantially corresponds to the said textured wall surface (S108). Finally, the textured wet mixture is cured (S109).