Building means, having a main plate 1, a flexible sheet 2 attached thereto, a first bolt portion 4 extending outwards of the plate 1 and an opposite second bolt portion 5 extending outwards of the plate. The building means formed such that when it is in use a structural member can be fastened to the first bolt 4 portion while at the same time the plate 1 is arranged behind exterior cladding 8 of a building. A ledge 2a, after it has been bent into shape, extends to beyond the cladding so that rainwater contacting the first face of the plate portion can run down the first face and be guided by the ledge to a drain away position in front of the cladding.