National Home Inspector Examination® (NHIE) study plan
NHIE · Give each week a clear focus.
8 weeks · About 6 hours per week
Structural
Map the Structural domain's published task list into a one-page outline, grouping line items under foundations, framing, and roof structure
Define footing, slab, and foundation-wall terminology (footing, stem wall, slab-on-grade, pier, grade beam) and write a plain-English definition for each from memory
Trace how water moves from roof to grade and list the code-relevant clearances and slopes at each transition point
Build a 40-term structural glossary in a spreadsheet with a column for 'how I would explain it to a client'
Your checkpoint
A one-page structural outline plus a 40-term glossary spreadsheet, reviewed for accuracy against at least two independent references
Structural
Explain load paths from roof to foundation in writing, naming each structural member in sequence
Distinguish platform, balloon, and post-and-beam framing and describe the inspection implications of each
Identify the common structural defects that show up in older housing stock (notching, over-spanned joists, cut members, inadequate bearing) and write a one-line defect description for each
Practice writing 15 structural report narratives that state the observation, the implication, and the recommended action
Your checkpoint
Fifteen written structural narratives using an observation–implication–recommendation format, each under 60 words
Structural
Walk through the exterior envelope in order (roof covering, flashing, wall cladding, windows, grade) and write the failure modes at each layer
Differentiate structural observation from code-compliance judgment and draft three example phrases that keep the report on the correct side of that line
Analyze how moisture intrusion and wood-destroying insects present differently and describe what evidence distinguishes them
Complete 30 structural practice questions untimed and log every miss with the reason for the error
Your checkpoint
An error log covering all missed items from 30 structural practice questions, with a corrected reasoning note for each
Structural & Mechanical
Re-test the structural error log items cold and confirm each is now answered correctly without notes
Preview the Mechanical domain's task list and mark which topics overlap with structural (venting, combustion air, appliance clearances)
Define the difference between a safety hazard and a functional defect and apply it to five structural scenarios
Draft a personal inspection sequence checklist that orders the walkthrough room by room and system by system
Your checkpoint
A cold re-test of the structural error log scoring at least 85 percent, plus a finished walkthrough sequence checklist
Mechanical
Describe the electrical service path from utility drop to panel to branch circuit, naming the components in order
Explain grounding and bonding, and write three report phrases that describe an observed defect without prescribing repairs
Identify the amperage and conductor cues visible in a panel and describe what can and cannot be determined from a visual inspection
List the common electrical safety findings (double-taps, missing covers, improper bonding, aluminum branch wiring) with a short description of each
Your checkpoint
A one-page electrical reference sheet covering service path, grounding and bonding, and the top ten safety findings
Mechanical
Trace the heating fuel-to-heat path for gas forced air, gas hydronic, and heat pump systems, naming each component
Explain combustion air, draft, and venting requirements well enough to describe why a backdrafting appliance is a hazard
Compare plumbing supply and drain-waste-vent behavior and list the failure signs for each (pressure loss, cross-connection, trap seal loss, inadequate slope)
Practice 20 mechanical practice questions timed at exam pace and log every miss
Your checkpoint
A mechanical error log from 20 timed questions plus a component-sequence diagram for three heating system types drawn from memory
Mechanical & Business
Re-test the mechanical error log cold and confirm each item is corrected
Summarize the business domain's scope: standards of practice, contract and report language, liability limits, ethics, and client communication
Draft a client-facing summary paragraph for a report that separates safety items from maintenance items
Write three scenarios where an inspector must decline to speculate, and the exact language to use instead
Your checkpoint
A cold re-test of the mechanical error log at 85 percent or better, plus three written scope-limitation scenarios with approved phrasing
Business
Assemble a one-page business-domain reference covering contracts, standards of practice, ethics, and liability
Run two full-length timed practice exams under exam conditions and record domain-level scores for each
Analyze score gaps by domain and re-study only the weakest areas in the final days
Review both error logs end to end and confirm no item remains unexplained
Your checkpoint
Two completed timed practice exams with domain-level score breakdowns and a final one-page weak-area review sheet
Milestones
Week 4: Score 85 percent or better on a cold re-test of all structural error log items, and hold a finished walkthrough sequence checklist
Week 6: Score at least 70 percent on a timed 20-question mechanical set, with every miss logged and explained
Week 7: Score 85 percent or better on the cold mechanical re-test and have three written scope-limitation scenarios ready
Week 8: Score at least 80 percent overall on both full-length timed practice exams, with no domain below 70 percent