Abstract: Apparatus for providing double coverings or claddings has a stiff support piece shaped to fit in a bottom portion of a corrugation of a pre-existing roof covering. The support piece attaches to subjacent purlins through the pre-existing covering. The support piece has a generally U-shaped section including a base coopertively shaped for being seated in the corrugation with upper edges of the U-shaped section being folded back horizontally so as to provide two seats for engaging an upper purlin. The laterally disposed ends of the seats are raised at right angles to form abutments. An upper purlin is attached to the abutments of the support piece. The upper purlin is a reversed U-shaped metallic section having side wings. The wings have edges folded back horizontally and outwardly.

Abstract: A wire fence has a hollow elongated stake for supporting a horizontal wire. The stake has vertical rows of perforations for receiving wire fasteners. The perforations are positioned between two vertical planes tangent to vertical extending edges of the stake, the planes being parallel to the wire. The fastener has a loop for insertion into the perforation, a wire support section extending outwardly through the vertical planes, and a free end at the end of the wire support section, which is bent back toward the loop portion so that the wire is held in place.