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]

Do the windows not open? Sounds like a good candidate for “sick building syndrome”.
Most passive houses I've seen have windows that open, but they are typically double/triple glazed (depending on climate) and are casement style instead of the more typical (and inefficient) double hung. They also typically feature a ventilation system to manage air movement precisely to prevent the issues you're concerned about.