An article, particularly a cable tray 1, for installation on a flat roof 12 of a building. The article has an underside 10 and a side wall 11 extending upwards from the underside. A first part of a piece of fabric 9 extends over at least a part of the underside of the article and a second part of the piece of fabric extends over at least part of the side wall of the article. The fabric acts as a cushion reducing the risk of damage to a surface on which an article is installed. The fabric also acts as a wick operative to draw moisture away from between an article and a surface on which it is installed. The fabric may comprise hydrophilic material, such as polyester, and may be non-woven. The article may be moulded and the fabric incorporated into the article during moulding.