How many subgroups for sleeping purposes are Residential (Group R) occupancies classified into?

Residential (Group R) occupancies are classified into four subgroups specifically to address the different types of sleeping arrangements and the associated safety requirements. The classification is essential for fire safety regulations, as it helps determine building codes, occupancy limits, fire protection systems, and egress requirements for each type of residential facility.

These subgroups typically include:

1. R-1: Residential occupancies that provide transient lodging, such as hotels and motels, where occupants stay for a short duration.

2. R-2: Residential occupancies that contain sleeping units for more than two households, such as apartment complexes and condominiums.

3. R-3: These are typically occupancies that are not classified as R-1 or R-2 and often refer to dwellings like single-family homes and duplexes.

4. R-4: This category includes residential facilities for individuals with physical or mental disabilities, which do not fall under the other categories and often have specific design safety requirements.

Understanding this classification is crucial for firefighters, as it influences their approach to firefighting, rescue operations, and ensuring the safety of residents in various types of residential settings.