Massachusetts Construction Supervisor License (CSL) Practice Test

What feature must a habitable room have to comply with building regulations?

1. A window

2. A closet

3. A door

4. A bathtub

The correct answer is: A window

A habitable room must have a window to comply with building regulations primarily because it ensures adequate natural light and ventilation. Building codes typically stipulate that habitable spaces, such as bedrooms and living rooms, need to provide a certain amount of daylight. Windows not only illuminate a room but also contribute to the overall health and comfort of its occupants by allowing fresh air to circulate. This requirement helps reduce the risk of indoor air pollution and enhances the quality of life within the space. While other features like a closet, door, or bathtub may be important for functionality or comfort, they are not universally mandated for a room to be considered habitable under regulations. Consequently, the presence of a window is a crucial element that supports both safety and well-being within a residential environment.