Double dome heat and smoke vent structure

Details Double dome heat and smoke vent structure Double dome heat and smoke vent structure

E - Fixed Constructions

04

D

20/21, 98/49

E04D 13/03 (2006.01)

Patent

CA 1101181

Abstract of the Disclosure A double dome thermoplastic fully enclosed skylight structure is heat softenable for opening the heat and smoke vent to the ambient in case of extraordinary temperature elevation in the vicinity of the skylight structure. The in- ner dome has a plurality of holes for circulating hot air to the space between the two domes for softening the outermost dome. To provide thermal insulation during normal use the holes are sealed with a heat shrinkable thermoplastic film which shrinks in the presence of the elevated temperatures thus opening the holes at that time. - 1 -

314909

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