Group R-4 occupancies must meet the construction requirements of _____________ occupancies.

Group R-4 occupancies, which typically include residential facilities such as assisted living or boarding houses for a more significant number of occupants, must adhere to construction requirements similar to those outlined for Group R-3 occupancies.

These requirements ensure that the buildings provide adequate safety and support for their residents, taking into consideration factors such as egress, structural integrity, and fire protection, which are crucial in residential settings. Group R-3 occupancies generally include single-family homes and duplexes, which have less stringent building requirements compared to larger assembly or institutional groups. Therefore, aligning Group R-4 with R-3 standards allows them to maintain a suitable level of safety and accessibility while being proportionate to their occupancy loads and use cases.

This relationship emphasizes that while Group R-4 facilities may serve a somewhat different demographic, they still share similar physical and operational traits with Group R-3 buildings, thus justifying their reliance on the same construction standards for safety and efficiency.