![Why does my slab deflection increase using ACI 318-19?](https://blog.risa.com/hs-fs/hubfs/Imported_Blog_Media/ES14v19_deflection_hero.jpg?width=700&name=ES14v19_deflection_hero.jpg)
December 21, 2021
Why does my slab deflection increase using ACI 318-19?
Since the release of RISAFloor v15 and ADAPT-Builder v20, both which include the latest update to the ACI code (ACI 318-19), some customers have asked our support team why they're experiencing increased slab deflections. These increased deflections are the result of changes in the calculation of...