Abstract: The invention is concerned with damp-proof courses which can be used at the end of a cavity wall of a building structure adjacent to a door or window frame. The invention provides a damp-proof course, which has a high degree of versatility in use. The damp-proof course in accordance with the invention comprises a strip of corrosion-resistant moisture impermeable material (and is preferably formed as a plastics extrusion) and its cross-section provides two web-like elements arranged at an acute angle in the range 45.degree. to 90.degree. with respect to each other the first web having at least one undercut formation on the inside of the angle and the second web having at least one undercut formation on the outside, each of the undercut formations providing anchorage for wall ties at any position along the length of the strip, and at least one of the webs also has a moisture barrier formation on its inside extending throughout the length of the strip.

Abstract: The invention provides a structural assembly for use in a building comprising a sub-frame structural element and a metal window frame element; said sub-frame element itself comprising a strip of corrosion-resistant liquid-impermeable material (e.g.

Abstract: The invention provides a structural assembly for use in a building comprising an elongate structural element for use in a frame (such as a window or door frame) in an opening in the wall of the building, said structural element providing an effective pocket open along one side thereof, and a sill which comprises an elongate plate-like element formed along its inner edge with an arcuate surface as seen in transverse section, whereby said sill is adapted for rocking motion about its inner edge, said inner edge of said sill being received within said pocket and said plate-like element extending laterally from said elongate structural element.

Abstract: The invention provides a structural assembly for use in a building comprising a pair of strip elements which form adjacent horizontal and vertical sides of a frame and a corner piece joining said two strip elements together, said corner piece comprising a hollow body, formations at right angles to each other on said hollow body providing respective spigot-and-socket connections with said two strip elements, said body of said corner piece having a moisture retaining wall arranged so that moisture draining from one of said strip elements into said corner piece, on that side of said moisture retaining wall which includes the spigot-and-socket connection for the strip element which provides said vertical side of said frame, is contained therein by said wall.In the preferred construction, said moisture retaining wall comprises an internal web substantially dividing one part of the interior of said corner piece from another part.