TIL about “passive houses,” building that are airtight and require barely any energy to heat or cool

https://lemmy.world/post/2783734

TIL about “passive houses,” building that are airtight and require barely any energy to heat or cool - Lemmy.world

More info here: https://www.wsj.com/articles/passive-home-design-massachusetts-2c89a18d [https://www.wsj.com/articles/passive-home-design-massachusetts-2c89a18d]

As a firefighter, Airtight sounds like a bomb if there’s ever a fire.
If there is a fire in in a air tight room and you close the door and stop the ventilation, wouldn’t the fire die out because of the lack of oxygen?
Depending on how air tight it is, couldn’t it make the room explode due to the increased pressure from the hot gasses expanding?