NCIDQ Building Codes and Regulations 2

Question 1

What flame spread index (FSI) rating is required for interior finish materials in egress corridors under IBC?

Accepted Answer

Class A (FSI 0–25)

Answer

IBC requires Class A (FSI 0–25) interior finish in exit enclosures and corridors serving high-hazard occupancies to limit flame spread.

Question 2

Under NFPA 101, what is the maximum dead-end corridor length permitted in a sprinklered healthcare occupancy?

Accepted Answer

30 feet

Answer

NFPA 101 limits dead-end corridors in healthcare occupancies to 30 feet even when sprinklered, due to non-ambulatory patient evacuation needs.

Question 3

Which accessibility standard specifies the 1:12 maximum slope for accessible ramps?

Accepted Answer

2010 ADA Standards for Accessible Design

Answer

The 2010 ADA Standards for Accessible Design require ramp running slopes no steeper than 1:12 (one inch rise per 12 inches of run).

Question 4

What is the minimum required headroom clearance in a means of egress under IBC?

Accepted Answer

7 feet 6 inches

Answer

IBC Section 1003.2 requires a minimum ceiling height of 7 feet 6 inches throughout the means of egress.

Question 5

Which code section governs the number of plumbing fixtures required for a commercial tenant buildout?

Accepted Answer

International Plumbing Code (IPC) Table 403.1

Answer

IPC Table 403.1 provides minimum fixture count requirements based on occupancy type and occupant load, directly applied during tenant buildouts.

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