Heated gas extraction and ejection device for building, has body extended in height, to form windbreak, with roof vent or skylight casement, for increasing extraction coefficient during its utilization, and being retracted after utilization

摘要

The device has a body (1) which is extended in height, to form a windbreak, with a casement (3) of a roof vent or a skylight or around the casement in an open position. The windbreak encloses a periphery of the roof vent or the skylight having an opening via the casement, for increasing gas extraction coefficient during its utilization. The body is retracted after its utilization is completed.