Abstract: A system with moveable surfaces for building facades comprises means that, in combination, are capable of providing a “double-skin” for said facades during the cold season and of shading the facades from the sun during the hot season. Said system comprises a plurality of sunshade slats and of panes in which the sunshade slats and the panes are moveable.

Abstract: A fixing device (D) for panels (2) made, for example, of glass or the like by means of anchorage means with spherical joint, comprises at least one support equipped with means for fastening the edge of the panels (2), in which each panel to be fixed intersects, with its own thickness, a spherical surface of rotation of the spherical joint itself. In this way, it is advantageously possible to prevent any need to make holes in the panels (2) themselves.

Abstract: A fixing system including at least one upright, preferably in extruded aluminum, with special orientable brackets suitable for being restrained to the same upright, particularly suitable for the construction of structural facades of the hanging type, whether these provides rotule supports for the holding of perforated slabs or panes of glass or whether they have point-type supports with a ball joint for the holding of non-perforated slabs or panels of glass.