Abstract: A lattice portion of elastomeric material comprises a generally rectangular framework for sealing at least one cladding panel in a building construction. The lattice portions have at least one member protruding from each corner of the rectangle and being an extension of a side of the rectangle. The lattice portions are preformed, assembled on a structure of a building and joined together to form a continuous lattice by forming junctions between adjacent lattice portions or between lattice portions and intermediate spacing which may connect the lattice portions. The completed lattice is attached to the building and cladding panels inserted into the lattice.

Abstract: A glazing structure for example for curtain walls for buildings comprises a panel held in position between a structural member and a glazing bead of open channel section and a pair of elastomeric gaskets for making a weathertight seal. The glazing bead is designed to engage the structural member and has side walls which are turned outwardly from one another at their end portions. One end porton of each elastomeric gasket fits between the respective outwardly turned end portions of the glazing bead and the panel and the other end portion fits in the open channel of the glazing bead. In this way the external surface of the structural member and the glazing bead are covered by the elastomeric gasket to provide a maintenance free exterior for a building.