ASHI Cheat Sheet 2026

The 30 highest-yield ASHI facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is an essential aspect of plumbing, electrical & hvac systems? → Conducting detailed inspections using standards of practice
2. What condition is indicated when a homeowner reports that the fireplace 'smokes back' into the room on cold days? → Cold stack effect causing a downdraft that overpowers the warm draft
3. What is an essential aspect of exterior & roofing? → Conducting detailed inspections using standards of practice
4. What is an essential aspect of plumbing, electrical & hvac systems? → Conducting detailed inspections using standards of practice
5. A crawl space vapor retarder should cover: → At least the exposed soil of the crawl space floor, lapped and sealed at seams
6. In a crawl space, wood structural members should maintain what minimum clearance above exposed soil? → 18 inches
7. Which condition most commonly indicates inadequate attic ventilation? → Staining or moisture damage on the underside of roof sheathing
8. What is the PRIMARY purpose of obtaining ASHI certification in ASHI Certified Home Inspector? → To demonstrate verified competency and adherence to professional standards
9. An ASHI inspector observes that bathroom exhaust fans terminate in the attic space rather than at the exterior. This is considered: → A deficiency that introduces moisture into the attic
10. How does the ASHI body of knowledge relate to daily professional practice? → It provides the foundational framework that guides decision-making and standard practices
11. A home inspector finds that the flue liner in a masonry chimney is missing. What is the recommended action? → Report it as a deficiency and recommend evaluation by a qualified chimney specialist
12. How does the ASHI body of knowledge relate to daily professional practice? → It provides the foundational framework that guides decision-making and standard practices
13. What does an ASHI inspector look for when evaluating foundation settlement? → Cracks, displacement, out-of-plumb walls, sticking doors, and sloped floors
14. What is an essential aspect of structural systems? → Conducting detailed inspections using standards of practice
15. What is an essential aspect of interiors, insulation & ventilation? → Conducting detailed inspections using standards of practice
16. A crawl space has support posts that are sitting directly on bare soil with no footings. This condition is a concern because: → The posts will absorb moisture and eventually rot, compromising structural support
17. What is an essential aspect of exterior & roofing? → Conducting detailed inspections using standards of practice
18. Why must crawl space vents be free of obstructions according to traditional ventilation standards? → To allow cross-ventilation that removes moisture-laden air and prevents wood decay
19. Which foundational principle is MOST important for success in the ASHI Certified Home Inspector profession? → Commitment to continuous learning, ethical practice, and quality outcomes
20. How does the ASHI body of knowledge relate to daily professional practice? → It provides the foundational framework that guides decision-making and standard practices
21. Which foundational principle is MOST important for success in the ASHI Certified Home Inspector profession? → Commitment to continuous learning, ethical practice, and quality outcomes
22. What is an essential aspect of interiors, insulation & ventilation? → Conducting detailed inspections using standards of practice
23. What is an essential aspect of interiors, insulation & ventilation? → Conducting detailed inspections using standards of practice
24. According to ASHI Standards, a home inspector is NOT required to do which of the following during a fireplace inspection? → Ignite a fire to test draft
25. What is an essential aspect of exterior & roofing? → Conducting detailed inspections using standards of practice
26. What is an essential aspect of exterior & roofing? → Conducting detailed inspections using standards of practice
27. What is an essential aspect of structural systems? → Conducting detailed inspections using standards of practice
28. Which of the following conditions in an attic would an ASHI inspector identify as a sign of prior or active roof leak? → Water stains on the underside of roof sheathing near penetrations or valleys
29. During a crawl space inspection, an ASHI inspector finds standing water. This should be reported because: → Standing water promotes wood rot, mold growth, and deterioration of structural components
30. Which foundational principle is MOST important for success in the ASHI Certified Home Inspector profession? → Commitment to continuous learning, ethical practice, and quality outcomes