Abstract: To avoid the need for nailing through tiles and other cladding elements, they are formed with oppositely directed hook formations at opposite edges for engaging supports, which may be retaining profiles mounted on battens. For example, an upwardly facing hook formation is engageable under a downwardly directed supporting tongue of a profile when the element is tilted. It can then be pivoted about that tongue, into its cladding configuration. Its other hook formation snap-engages behind the tongue of the adjacent supports, which already engages the upwardly facing hook portion of another cladding element. Each support profile extends for most the width of one or more elements and provides support.