ICC Commercial B2 flashcards
ICC Commercial B2 · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Permit requirement
- A permit is required for new construction, alterations, repairs, demolition, and changes of occupancy unless the work is exempt under the code's minor-repair provisions.
- Certificate of occupancy
- Issued after final inspection confirms the building complies with approved plans and is safe for the intended occupancy group.
- Occupancy classification
- Each space is assigned an occupancy group (A, B, E, F, H, I, M, R, S, U) based on the use and occupant load.
- Mixed occupancy
- When a building contains multiple occupancy groups, apply either the separated or non-separated occupancy provisions of the code.
- Construction type
- Classified as Type I through Type V, with subtypes A (protected) and B (unprotected) for Types I-IV; Type V has no fire-resistance rating requirement.
- Fire-resistance rating
- Expressed in hours and assigned to structural members, exterior walls, and floor/ceiling assemblies based on construction type and occupancy.
- Building height and area
- Limited by construction type and occupancy group; allowable area may be increased by frontage and sprinkler provisions.
- Referenced standards
- The code incorporates standards such as NFPA 13 for sprinklers, ASTM E119 for fire tests, and ASME A17.1 for elevators.
- Occupant load factor
- Calculated by dividing floor area by the occupant load factor for the use; typically 100 sq ft per occupant for business and 15 sq ft for assembly unconcentrated.
- Egress width
- Required width based on occupant load; minimum of 0.2 inches per occupant for level components and 0.15 inches per occupant for stairways.
- Number of exits
- At least two exits are required when occupant load exceeds 49 for most occupancies, or when travel distance exceeds 75 feet.
- Travel distance
- Maximum travel distance to an exit varies by occupancy and sprinkler protection; common limits are 200 feet for nonsprinklered business and 300 feet for sprinklered business.
- Dead-end corridors
- Limited to 20 feet in nonsprinklered buildings and 50 feet in sprinklered buildings for most occupancies.
- Accessibility standard
- Accessible routes, parking, entrances, and toilet rooms must comply with ICC A117.1; the 2017 edition is commonly referenced.
- Accessible route width
- Accessible routes must be at least 36 inches wide, with passing spaces at intervals not exceeding 200 feet.
- Ramp slope
- Slope not steeper than 1:12, with landings at top and bottom and handrails on both sides if rise exceeds 6 inches.
- Fire barriers
- Used to separate occupancy groups and enclose exit stairways; required rating depends on occupancy and construction type, commonly 1 or 2 hours.
- Fire partitions
- Separate dwelling units, guest rooms, and corridors; minimum 1-hour rating, with smoke partitions requiring a 1-hour rating in some cases.
- Smoke barriers
- Required around atriums and certain occupancies; must limit smoke spread and have a minimum 1-hour rating.
- Interior finish classes
- Class A (flame spread 0-25), Class B (26-75), Class C (76-200); smoke-developed index is also limited.
- Sprinkler systems
- Automatic sprinkler protection is required based on occupancy, height, and area; NFPA 13 is the referenced standard.
- Fire-rated assemblies
- Tested per ASTM E119; ratings include structural elements, walls, and floor/ceiling assemblies.
- Opening protectives
- Fire-rated doors and windows must be labeled and installed per NFPA 80; ratings range from 20 minutes to 3 hours.
- Smoke detection
- Required in certain occupancies and corridors; must comply with NFPA 72 installation standards.
- Load combinations
- Use ASCE 7 load combinations for dead, live, wind, seismic, and snow loads; strength design uses factored loads.
- Live loads
- Minimum uniformly distributed live loads are specified by occupancy, e.g., 100 psf for assembly areas and 50 psf for offices.
- Foundation design
- Soil bearing capacity must be determined by geotechnical investigation; footings must extend below frost line.
- Seismic design categories
- Structures assigned to Seismic Design Categories D, E, or F require special detailing and lateral-force-resisting systems.
- Concrete requirements
- Minimum compressive strength and reinforcement requirements per ACI 318; cover requirements vary by exposure.
- Energy code compliance
- The 2018 or 2021 IECC is commonly adopted; compliance via prescriptive, trade-off, or performance path.
- Building envelope
- Thermal envelope requirements include insulation R-values, fenestration U-factors, and air leakage limits.
- High-rise building
- Defined as occupied floors more than 75 feet above the lowest level of fire department access; require additional fire protection and egress provisions.