This Study Companion is a comprehensive self-study guide for the requirements of the 2021 International Residential Code for One- and Two-Family Dwellings. The book addresses building, mechanical, plumbing, fuel gas and electrical provisions. Particular emphasis is placed on the building planning requirements of Chapter 3 and the floor, wall, ceiling, and roof framing provisions.

placed on the building planning requirements of Chapter 3 and the floor, wall, ceiling, and roof framing provisions. The Companion’s 18 study sessions provide practical learning assignments and contain specific learning objectives, applicable code text and commentary, and a list of questions summarizing key points for study. A 35-question quiz is provided at the end of each study session enabling users to test their knowledge of the material. An answer key indicates the correct response and reference for each of the 630 total questions.