nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqknzsux7p6lzwzdedp3m8c3c92z0swzc0xyy5glvse58txj5e9ztqt54hp5 (nprofile…4hp5) The chimney effect used to be a design feature in most UK schools. Classrooms were ventilated into tall hallways, so the warm air would rise to the top of the hallway and be ventilated out. Two problems with this model:
It's just not effective enough. Most UK schools suffer overheating already and are at "medium" to "extreme" risk of experiencing overheating in a +2°C climate scenario.
The central corridor collects air breathed by all the kids, keeps it warm for an extended period, and then everyone has to walk through it several times a day. COVID taught us that this design is one reason why kids get sick so often: every individual infection gets incubated and exposed to the whole school population.