Massachusetts Unrestricted Construction Supervisor License Practice Test

Which document outlines the requirements for mechanical ventilation in residential buildings?

1. International Building Code

2. International Residential Code

3. Electrical Code

4. National Standard Plumbing Code

The correct answer is: International Residential Code

The International Residential Code (IRC) specifically addresses the requirements for mechanical ventilation in residential buildings. It provides guidelines on how to ensure that indoor air quality is maintained in homes through proper ventilation systems. This includes minimum airflow rates, the design and installation of mechanical ventilators, and general provisions for air exchange to minimize moisture buildup and pollutants. By following the IRC, builders and contractors can ensure compliance with safety and health standards regarding ventilation, which are critical for the comfort and wellbeing of occupants. This makes the IRC the primary document for understanding how to implement mechanical ventilation in residential settings, differentiating it from the other options, which either focus on building structures, electrical standards, or plumbing requirements rather than specific ventilation needs in residential construction.