##  [Stack Effect](/stack-effect) 

  ##  [Stack Effect](https://engineering.quantumdictionary.io/stack-effect-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

Buoyancy‑driven vertical movement of air within a building or vertical shaft caused by density differences between interior and exterior air due to temperature (and thus density) differences; typically produces inflow at low levels and outflow at high levels when interior air is warmer than exterior.