| 摘要 |
<p>Transparent, thermally-insulating, closed hollow sheets (A) of extrudable plastic (I) as cladding components for buildings, comprise at least two parallel plates connected together with two parallel spacers between the plates and level with the facade, so as to form hollow chambers with a vertical expansion which is not more than 1/4 times the expansion in width. Also claimed are hollow-chamber sheets of transparent plastic (I), extruded in one piece and joined together as above, with a thickness of (c) = 50-500 mm and a ratio of inside width (b) to mean height (a) = b:a = 5-200. Also claimed is cladding for buildings, contg. one or more of the above hollow sheets (A) and provided with a reversible shading system for (A). Also claimed is an extrusion mould for producing the unclosed bridged-plate components, with lips (31, 32), core pieces (33) between with slots (34) to form the bridges and feeder channels (35) cut in for the bridge material. Also claimed is a process for the heat insulation and heating of buildings with hollow sheets (A) as cladding, in which incident radiation is converted into heat energy and transferred to the building (pref. by a liq. flow distribution system) and loss of heat to the surroundings is largely prevented. <IMAGE></p> |
