National Home Inspector Examination® (NHIE) study guide
NHIE · Work through your exam, one topic at a time.
The National Home Inspector Examination® (NHIE) is a high-stakes, multiple-choice examination administered by the Examination Board of Professional Home Inspectors (EBPHI). According to EBPHI, it is "the Original Exam for the Home Inspection Profession," and states that require home inspectors to pass it participate in a national standard for the professional home inspector. The NHIE addresses the core competencies of home inspection as they apply in all states, making it relevant whether you practice in a regulated or unregulated state. The exam is intended for candidates seeking licensure or certification as home inspectors, as well as those who want to demonstrate competence to employers, consumers, or regulators. Topics on this exam: Structural, Mechanical, and Business. The NHIE study guide has 3 sections and about 1,322 words.
01Structural Systems
The Structural domain tests how a house carries load and how it fails. Expect foundation types and defects, framing and connections, roof and ceiling structure, and evidence of movement, decay, or alteration. The inspector’s job is to identify observable conditions, explain the likely mechanism, and recommend further evaluation when the cause or remedy is beyond a visual inspection. Load path: roof covering → sheathing → rafters or trusses → ceiling joists → exterior and interior walls → beams → columns → footings → soil.
465 words, about 2 min02Mechanical Systems
The Mechanical domain covers the equipment that heats, cools, moves water, and vents combustion gases. Questions often test whether you can distinguish a maintenance item from a safety defect, and whether you know the sequence for safe operation. You are not required to calculate system capacity, but you must recognize improper installation, venting, and drainage. Combustion safety: a natural-draft furnace or water heater needs a clear flue, proper draft, and combustion air.
469 words, about 2 min03Business Practices
The Business domain tests the legal and ethical side of inspection: contracts, standards, reports, insurance, records, and client communication. The exam expects you to know that an inspection is a limited visual service, not a warranty or code compliance review, and that the written agreement and report define your exposure. Pre-inspection agreement: obtain a signed written agreement before the inspection. It should identify the scope, standards of practice, exclusions, fee, limitations, and dispute-resolution terms.
388 words, about 2 min