A building having two cladding panels connected to a support member wherein each panel comprises a web part, to provide a generally outwardly facing surface of the panel, having at one edge thereof.a first edge portion and at an opposite edge thereof a second edge portion:

the first and second edge portions having a configuration whereby the first edge portion of a first panel is resiliently interengaged with the second edge portion of the second panel as a result of resilient deformation of at least one of said portions to retain the adjacent edges of the panels from displacement in directions normal to the edges, and wherein the first edge portion of the first panel is connected to the support member by a fastener means and the second edge portion of the second panel is connected to the support member by means of the first edge portion of the first panel.