ICC B1 study guide
ICC B1 · Work through your exam, one topic at a time.
The ICC B1 Residential Building Inspector credential is a professional certification issued by the International Code Council for individuals who review and inspect one- and two-family dwellings and townhouses for compliance with residential code provisions. It is typically pursued by municipal inspectors, private inspection providers, plan reviewers, contractors moving into code enforcement, and building-safety staff expanding their credentials. The ICC B1 study guide has 7 sections and about 2,535 words.
01Code Administration and Inspection Process
Code administration questions look procedural, but they test judgment about who may approve what and when work must stop for inspection . Expect items on permits, approved plans, alternative materials, manufacturer instructions, inspection stages, and certificates.
318 words, about 2 min02Building Planning and Light/Ventilation Requirements
This domain tests whether a dwelling is usable and safe : room sizes, ceiling heights, natural or artificial light, ventilation, and escape. Questions often hinge on one number, so learn the thresholds as a set rather than as isolated facts.
335 words, about 2 min03Footings and Foundations
Footings spread building loads into the soil. Questions usually test whether you understand that size follows load and soil , and that depth follows frost and disturbance -not a single magic number.
305 words, about 2 min04Floor Construction
Floor framing questions test span logic, bearing, and the limits on cutting wood. You do not need to memorize every span table if you understand that span depends on member, species, grade, spacing, and load .
332 words, about 2 min05Wall Construction, Wall Coverings, and Exterior Finishes
This domain ties the structure to the envelope . Walls carry loads, resist wind and seismic movement, and keep water out.
310 words, about 2 min06Roof and Ceiling Construction
Roof framing questions test the load path from roof to wall and the difference between members that tie a roof and members that support it. Concepts Rafters are sized from span tables and are notched at the bearing only within limits; the remaining heel must be adequate.
298 words, about 1 min07Roof Coverings
Roof covering questions are mostly about slope, underlayment, flashing, and fastening . A roof is a system, and the wrong layer order causes leaks even when the shingles are correct.
637 words, about 3 min