What code must detached one and two-family dwellings comply with?

• A. International Building Code (IBC)
• B. International Residential Code (IRC)
• C. National Electric Code (NEC)
• D. Uniform Commercial Code (UCC)

Answer: (B)

Detached one and two-family dwellings must comply with the International Residential Code (IRC). The IRC is specifically designed for the construction, alteration, and repair of residential buildings, making it the most appropriate code for single-family and two-family homes. It encompasses various aspects such as structural integrity, energy efficiency, plumbing, mechanical, and safety standards tailored for residences.

The IRC provides clear guidelines and definitions that address the unique needs and characteristics of residential construction, distinguishing it from other codes that may apply to larger, commercial, or mixed-use buildings. By adhering to the IRC, builders and homeowners ensure that their dwellings are safe, livable, and compliant with best practices in residential construction.