ICC B1
RESIDENTIAL BUILDING
INSPECTOR
Exam Practice Questions
2026/2027 Edition
Verified Answers Plus Rationales
Q&A; | Instant Download PDF
EXAM SPECIFICATIONS
Time Allocation: 3.5 Hours
Total Questions: 80 Questions on Exam
Question Format: Multiple Choice with Rationales
Minimum Competency: 75% Required to Pass
Core Focus: 2021 IRC, Administration, Building Planning, Construction
ICC B1 Residential Building Inspector Exam Prep 2026/2027 Page 1
, Exam Overview & Content Outline
EXAM PURPOSE
This ICC B1 Residential Building Inspector Exam Prep validates knowledge required for certification
to inspect one- and two-family dwellings and townhouses not more than three stories. Content covers
2021 International Residential Code (IRC) for building, structural, and safety requirements.
CONTENT DISTRIBUTION
• Code Administration (6%) — Scope, applicability, duties of building official, permits, inspections,
violations
• Building Planning (20%) — Design criteria, fire-resistant construction, light/ventilation, room
dimensions, accessibility
• Footings & Foundations (16%) — Soil, footings, foundation walls, waterproofing, drainage,
under-floor space
• Floor Construction (13%) — Floor framing, joists, girders, subflooring, draftstopping
• Wall Construction & Covering (18%) — Wall framing, exterior walls, interior walls, wall bracing,
sheathing
• Roof/Ceiling Construction (11%) — Roof framing, roof covering, attic ventilation, ceiling height
• Public Safety & Special Construction (16%) — Means of egress, stairways, guards, smoke
alarms, swimming pools
QUESTION FORMAT & SCORING
Each item presents four options. Correct answers are highlighted in green with checkmark (✓).
Every question includes detailed rationale with 2021 IRC section references. ICC requires 75% to
pass.
STUDY STRATEGY
Master 2021 IRC Chapters 1-10. Know table references: R301.5 live loads, R602.3 wall framing,
R802 roof framing. Understand inspection sequence and code enforcement. Use rationales to
understand application.
CURRICULUM ALIGNMENT
Questions reflect 2026/2027 standards: 2021 International Residential Code, ICC B1 exam blueprint,
and common residential construction practices.
ICC B1 Residential Building Inspector Exam Prep 2026/2027 Page 2
, ICC B1 Residential Building Inspector Exam Prep 2026/2027 Page 3
RESIDENTIAL BUILDING
INSPECTOR
Exam Practice Questions
2026/2027 Edition
Verified Answers Plus Rationales
Q&A; | Instant Download PDF
EXAM SPECIFICATIONS
Time Allocation: 3.5 Hours
Total Questions: 80 Questions on Exam
Question Format: Multiple Choice with Rationales
Minimum Competency: 75% Required to Pass
Core Focus: 2021 IRC, Administration, Building Planning, Construction
ICC B1 Residential Building Inspector Exam Prep 2026/2027 Page 1
, Exam Overview & Content Outline
EXAM PURPOSE
This ICC B1 Residential Building Inspector Exam Prep validates knowledge required for certification
to inspect one- and two-family dwellings and townhouses not more than three stories. Content covers
2021 International Residential Code (IRC) for building, structural, and safety requirements.
CONTENT DISTRIBUTION
• Code Administration (6%) — Scope, applicability, duties of building official, permits, inspections,
violations
• Building Planning (20%) — Design criteria, fire-resistant construction, light/ventilation, room
dimensions, accessibility
• Footings & Foundations (16%) — Soil, footings, foundation walls, waterproofing, drainage,
under-floor space
• Floor Construction (13%) — Floor framing, joists, girders, subflooring, draftstopping
• Wall Construction & Covering (18%) — Wall framing, exterior walls, interior walls, wall bracing,
sheathing
• Roof/Ceiling Construction (11%) — Roof framing, roof covering, attic ventilation, ceiling height
• Public Safety & Special Construction (16%) — Means of egress, stairways, guards, smoke
alarms, swimming pools
QUESTION FORMAT & SCORING
Each item presents four options. Correct answers are highlighted in green with checkmark (✓).
Every question includes detailed rationale with 2021 IRC section references. ICC requires 75% to
pass.
STUDY STRATEGY
Master 2021 IRC Chapters 1-10. Know table references: R301.5 live loads, R602.3 wall framing,
R802 roof framing. Understand inspection sequence and code enforcement. Use rationales to
understand application.
CURRICULUM ALIGNMENT
Questions reflect 2026/2027 standards: 2021 International Residential Code, ICC B1 exam blueprint,
and common residential construction practices.
ICC B1 Residential Building Inspector Exam Prep 2026/2027 Page 2
, ICC B1 Residential Building Inspector Exam Prep 2026/2027 Page 3
