What you're preparing for
ICC B1 Residential Building Inspector examination
The ICC B1 certification verifies competency in inspecting one- and two-family dwellings under the International Residential Code. This academy walks the IRC chapter organization used on exam day.
- IRC administration and plan review basics
- Structural — footings, framing, and fasteners
- Mechanical and fuel-gas rough inspection
- Plumbing rough and finish inspection
- Residential electrical rough inspection
- Energy conservation and weather resistance
DolaOS internal training only. Nothing on this page constitutes a claim of state licensure, HUD roster placement, or regulatory approval.
Learning path
7 modules · Completion: Planned: DolaOS ICC B1 Preparation Certificate (not yet offered)- 01IRC FoundationsDraft
- 02Structural — Framing & FastenersDraft
- 03Mechanical & Fuel GasDraft
- 04Plumbing Rough & FinishDraft
- 05Residential ElectricalDraft
- 06Energy & Weather ResistanceDraft
- 07ICC B1 Timed PracticeDraft
Practice exam preview
IRC chapter-weighted practice set
Timed practice set weighted to the current ICC B1 content outline, with IRC section references cited in every explanation.
Field scenario
Case study — deck ledger to band joist connection
A newly framed deck ledger is fastened with common nails through vinyl siding into a rim joist. Walk the IRC section references, correct fastener schedule, flashing sequence, and the plan-review talking points you'd deliver to the builder.
Sample walkthrough · PreviewForms & reference library
- • Rough framing inspection checklist
- • Fastener schedule quick reference
- • Plan-review markup sheet
- • IRC chapter navigation map
- • ICC B1 content outline (public overview)
- • Common code-cycle change deltas
DolaOS Completion Certificate
On completion of every module and the timed practice exam, DolaOS issues an internal completion certificate: Planned: DolaOS ICC B1 Preparation Certificate (not yet offered).