What is NYC occupancy group R-3?
310.1.3 Group R-3 This occupancy shall include buildings or portions thereof containing no more than 2 dwelling units, occupied, as a rule, for shelter and sleeping accommodation on a long-term basis for a month or more at a time, and are not classified in Group R-1, R-2 or I.
How is occupancy load calculated in NYC?
Divide the square footage of the area by the relevant occupant load. For example, a “business area” with 10,000 square feet would equal 10,000/150, or 66 people. This is the maximum occupancy.
What is a Category 4 building?
Risk Category IV: These are buildings that are considered to be essential in that their continuous use is needed, particularly in response to disasters. Hospitals, fire stations, police stations and emergency vehicle garages must remain operational during and after major disaster type events.
What does R3 occupancy mean?
R-3 Residential occupancies where the occupants are primarily permanent in nature and not classified as Group R-1, R-2, R-2.1, R-4 or I, including: Buildings that do not contain more than two dwelling units. Adult care facilities that provide accommodations for six or fewer clients of any age for less than 24 hours.
What is a Class 3 building NYC?
Class 3, non-fireproof structures are those which are made of incombustible materials or assemblies of materials inadequate to meet the fire resistive rating requirements of class 1 or class 2 structures, or in which the exterior walls are of masonry or reinforced concrete and the interior framing is partly or wholly …
How do you find the maximum capacity of a building?
Occupant capacity of a building or space
- The maximum number of persons it is designed to hold; or.
- The number calculated by dividing the area of room or storey(s) (m²) by a floor space factor (m² per person) such as those given in Table C1 of the approved document for guidance.
What is a3 occupancy?
Group A-3 occupancy includes assembly uses intended for worship, recreation or amusement and other assembly uses not classified elsewhere in Group A including, but not limited to: Amusement arcades. Art galleries. Bowling alleys.
What is a Category III building?
Risk Category III:These buildings include those occupancies that have relatively large numbers of occupants because of the overall size of the building. They also include uses that pose an elevated life-safety hazard to the occupants such as public assembly, schools or colleges.
What is occupancy Category III?
NATURE OF OCCUPANCY III Buildings and other structures that represent a substantial hazard to human life in the event of failure, including but not limited to: • Buildings and other structures whose primary occupancy is public assembly with an occupant load greater than 300.
What class is my building NYC?
Building Classification | City of New York
| Building Code | Description |
|---|---|
| A | |
| A1 | TWO STORIES – DETACHED SM OR MID |
| A2 | ONE STORY – PERMANENT LIVING QUARTER |
| A3 | LARGE SUBURBAN RESIDENCE |
What is a Category 2 building?
Category 2 buildings are single household dwellings with high-risk envelope design, or other buildings with a building height of 10m or less. Specifically: SH use, and. risk score greater than 12 for any external elevation.