Canadian Home Inspector (RHI) Exam common mistakes
Canadian Home Inspector (RHI) Exam · Understand the traps and how to avoid them.
Quoting a code section number (e.g., a specific Ontario Building Code article) as the basis for a deficiency call instead of citing the applicable Standard of Practice performance statement or the observed condition.
Candidates come from trades or code-enforcement backgrounds where citing code is habitual, and they assume the inspector's job is code compliance. The RHI exam is built on the CAHPI Standards of Practice / CSA A770, which define a visual, non-invasive, performance-based inspection; code citation is outside the scope and often factually wrong for the age of the house.
What to do instead
Practise writing every deficiency in a two-part template: observed condition, then the Standard clause it relates to (e.g., roof drainage, flashings, and penetrations are inspected; performance of the roof covering is described rather than prescribed). Drill the scope and limitations sections until you can state, without notes, what is excluded (concealed damage, code compliance, adequacy of design, future performance, life expectancy).
Treating the Standards of Practice as a checklist of items that must all be present, and marking a system 'deficient' because a component is absent (e.g., no vapour barrier visible, no floor drain in a laundry room), rather than describing what was observed.
The Standards describe systems and components to be inspected and reported on; they do not mandate that every component exist. Candidates confuse 'inspected' with 'required'. The exam deliberately tests whether you understand the Standard is a minimum scope of observation, not a building code.
What to do instead
For each system in the Standard, separate three lists: components to be inspected if present and accessible, items explicitly excluded, and reporting requirements. When a component is absent, the correct report language is descriptive ('no evidence of a floor drain in the laundry area; the area was dry at the time of inspection'), not a defect call.
Recommending a specific repair method, contractor, or cost figure in the report or in a scenario answer (e.g., 'replace with a 30-year architectural shingle, budget $12,000').
Candidates want to be helpful and demonstrate expertise, and many have contracting experience. But prescribing repairs or quoting prices shifts the inspector from observer to designer/contractor, creating liability and a conflict with the Standards' limitation on design and cost advice, and it can breach Code of Ethics provisions on conflicts of interest if the inspector or an affiliate could do the work.
What to do instead
Use recommendation language that names the trade and the action without designing it: 'Further evaluation by a qualified roofing contractor is recommended.' Never state a price. If asked in a scenario, identify the defect, its implication, and the referral - and explicitly note that the method of repair is beyond the scope of a visual inspection.
Missing the conflict-of-interest and disclosure rules: answering a scenario by saying the inspector may accept a referral fee from a contractor, perform repairs on a home they inspected, or omit a defect because the client asked them to 'keep it quiet' for the sale.
These scenarios are written to sound practical and relationship-driven, and candidates answer as a businessperson rather than as a member bound by a code. The Code of Ethics prohibitions on undisclosed conflicts, kickbacks, and contingent compensation are absolute, and the duty to report honestly to the client overrides pressure from agents or sellers.
What to do instead
Memorize the small set of absolute rules and apply them mechanically: no undisclosed compensation from any party, no repairing a property you inspected (or a clear, disclosed waiting period where permitted), no report content influenced by anyone other than the client, and disclosure of any interest in the property. In scenario questions, pick the answer that discloses or declines, never the one that manages the relationship.
Failing confidentiality and report-distribution questions - releasing the report to the real estate agent, the lender, or a subsequent buyer without the client's consent, or assuming the report 'runs with the house'.
In practice, agents often ask for the report and inspectors want future referrals. Candidates import that habit. The report is prepared for the client, is confidential, and is not transferable; the exam tests whether you can separate marketing instinct from the ethical duty.
What to do instead
Learn the default: the report goes to the client only; third-party release requires the client's written authorization; a new buyer is a new client requiring a new engagement. When a scenario offers 'give the agent a copy to speed the deal', that is the distractor.
Describing what a component is instead of what was observed and what it means - e.g., writing 'the furnace is a high-efficiency condensing unit' and stopping there, without noting the age, the condition of the venting, the condensate line, or the implication for the buyer.
Candidates study equipment types and specifications because those are easy to memorize, and they assume naming the equipment shows competence. The exam rewards observation, condition, and implication; identification alone adds no value and can imply a warranty of adequacy.
What to do instead
Use a three-part narrative for every system: what was inspected and how (visual, non-invasive, from accessible areas), what condition was observed (including indications of past repair, moisture staining, corrosion, amateur work), and what the client should do next. Practise converting 'identify' answers into 'observe and implicate' answers.
Calling a safety or structural condition from insufficient evidence - declaring a foundation crack structural, a stain active mould, or a flue 'unsafe' without describing the observation, the limitation, and the referral.
Candidates fear missing a big-ticket item and over-correct by diagnosing. But an unsupported diagnosis is both inaccurate and a liability, and the Standards require the inspector to describe conditions and recommend evaluation by a qualified specialist, not to render an engineering opinion.
What to do instead
Adopt the formula: observation (what and where, with size/orientation/pattern), limitation (what prevented full assessment - finished surfaces, stored goods, season), implication (possible causes, stated as possibilities), recommendation (specialist evaluation). For structure, that specialist is a professional engineer or qualified foundation contractor; for suspected mould, a qualified indoor-air or remediation professional.
Ignoring the inspection limitations and access constraints in the answer - assuming the inspector entered the attic, walked the roof, or tested every receptacle, and then answering as if full access occurred.
Candidates answer from an imagined ideal inspection rather than the scenario as written, and they forget that the Standard permits reporting on areas not inspected and requires stating the reason (inaccessible, unsafe, not readily accessible, weather).
What to do instead
Before answering any technical scenario, list the access facts given. If the roof was not walked, the answer must say the roof was viewed from the ground or a window and that conditions may exist that were not visible. Practise the standard limitation phrases so they become automatic in both report writing and multiple-choice answers.
Writing reports that fail the professional-practice tests: no scope/limitations statement, no statement of who the report is for, no date and conditions, no signature/credentials, and no clear separation of observed conditions from recommendations.
Candidates focus on technical content and treat the report as a narrative of findings. The exam tests the report as a professional document whose enforceability depends on scope, limitations, and clarity, and on the inspector's ability to show what was and was not done.
What to do instead
Build a reusable report skeleton and check every answer against it: client and property identification, date and weather/conditions, scope and Standards reference, limitations and inaccessible areas, systems by Standard category with observations, summary of significant findings, recommendations with referral trades, and signature with credential and expiry. If a scenario answer omits scope or limitations, it is usually wrong.
Underestimating business-operations and liability questions - answering that a verbal report is sufficient, that a contract signed after the inspection is fine, or that a limitation-of-liability clause excuses a missed defect entirely.
Candidates treat business topics as common sense and skip study time, and they believe a strong disclaimer protects them from any claim. In reality the engagement must be in writing and agreed before the inspection, the standard of care is what a reasonably competent inspector would have done, and disclaimers do not override the duty to perform the contracted scope.
What to do instead
Study the sequence: written agreement and scope accepted before the inspection, payment terms, report delivery timeline, complaint-handling process, and record retention. Understand that limitation clauses are interpreted narrowly and do not protect against negligence within the contracted scope. Answer scenario questions by choosing the step that preserves the written record and the client's informed consent.