Building closure element with air circulation means.

摘要

1. External joinery unit with air circulation comprising a window frame equipped with at least two panes (10) (11) and a ledge (3) for the frame, in which a heat accumulator (5) is arranged, characterized in that the heat accumulator (5) is equipped with means (a) placing it in communication with the outside air and with means (a') (b) placing it in communication with the space (9) included between the two panes (10) (11) in order to allow the passage of the outside air through the heat accumulator (5), then through the space (9), by means of a natural convection movement, and in that the frame is equipped with means (e) for discharging the air which has passed through the space (9).