Mechanical Ventilation Requirements: Understanding the 2018, 2021 & 2024 IECC

Mechanical ventilation requirements have changed significantly between the 2018, 2021, and 2024 IECC. In this guide, we'll explain what each code requires, how local amendments can affect your project, the difference between a fresh air intake and a mechanical ventilation system, and how to determine what testing and documentation your jurisdiction requires before construction begins.