Become a Certified Attic, Insulation, Ventilation & Interior Inspector

This online certification program is provided by InterNACHI® and InterNACHI® School ( for free to InterNACHI® members. To become a certified attic, insulation, ventilation, and interior inspector: 

  1. Join InterNACHI® as a member.
  2. Complete InterNACHI's Home Inspector Certification Requirements.
  3. Complete InterNACHI free, online How to Inspect the Attic, Insulation, Ventilation & Interior Course. 

InterNACHI-Certified Electrical Inspectors are required to complete 24.0 hours of CE every year according to the InterNACHI® Continuing Education Policy for Certified Inspectors. Certified Inspectors may download and use InterNACHI's certification logos.


How to Inspect the Attic, Insulation, Ventilation & Interior Textbook


More Inspector Certifications

Members have unlimited access to all of InterNACHI's free, online courses. Learn at your own pace, and when you're ready, you can attain more than 60 additional types of inspector certifications (at no additional cost).

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InterNACHI provides members over $75,000 worth of membership benefits.

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