CPI study materials
CPI study resources

CPI (NCCT) case studies

CPI · Put your knowledge to work in context.

The Certified Professional Inspector (CPI) credential is the certification that the International Association of Certified Home Inspectors (InterNACHI®) awards to inspectors who complete its certification pathway. InterNACHI® describes itself as the world's leading association for home inspectors and states that it provides free training, online testing and certification, business development, marketing support, and discounts to its members. The CPI case studies are 5 cases and about 2,417 words.

1

The Painted-Shut Scuttle and the Agent's Shortcut

At a 1978 split-level, the buyer is out of state and the seller’s agent is present. The only attic access is a 22-by-30-inch scuttle in the hallway ceiling, partly blocked by a movable shelving unit.

649 words, about 3 min
2

The Hail-Dented Ridge and the Insurance Letter

At a 2006 two-story house, the inspector walks a 6:12 south-facing roof with architectural asphalt shingles reported as 12 years old. The roof has one layer.

418 words, about 2 min
3

The Notched Joist and the Hot Tub Deck

At a 1994 colonial, the inspector evaluates a 12-by-16-foot elevated deck. The ledger board is a 2x10 attached through vinyl siding to the band joist with ½-inch lag screws spaced 24 inches on center; no flashing is visible above the ledger, and one screw is missing.

452 words, about 2 min
4

The Capped TPR and the Garage Water Heater

At a 2015 house, the inspector examines a 50-gallon gas-fired water heater in the attached garage. The TPR valve has a ¾-inch copper discharge pipe that terminates 18 inches above the garage floor with a threaded end capped.

460 words, about 2 min
5

The Double-Tapped Panel and the Hot Bonus Room

At a 2001 house, the inspector opens a 200-amp main panel in the garage. A 20-amp breaker has two 12-gauge copper conductors under one terminal screw; the panel label does not list the breaker for two conductors.

438 words, about 2 min