Healthy Homes, Part 7: Environmental Barriers Course

Welcome to InterNACHI's free, online Healthy Homes, Part 7: Environmental Barriers Course.  This is part 7 of a 14-part Certified Healthy Homes Inspector certification program provided by InterNACHI to members for free. 

The goal of this course is to teach the inspector about possible sources of moisture intrusion in and outside of the home. 
Upon successful completion of this course, the student will be able to: 
  • Describe the areas of moisture intrusion within roofs, insulation, and siding; 
  • List susceptible areas of systems that may be compromised; 
  • Identify issues within different types of siding; 
  • Perform an inspection related to systems and components; 
  • Generate observations related to moisture intrusion; and 
  • Produce written reports related to observations conducted at a house.

Course Includes:
  • 18 InterNACHI CE credit hours;
  • 1.8 CEU; 
  • 4,006 words;
  • 10 quiz questions in two quizzes;
  • Inspection and writing assignment; 
  • Research and writing assignment;
  • 15-question final exam; and 
  • Certificate of Completion. 

You will learn about the following topics: 
  • Roofs
  • Insulation
  • Siding
  • Fiber Cement 
  • Brick 
  • Stucco
  • Vinyl 
  • Metal

Healthy Homes, Part 7:  Environmental Barriers Course

Course # 4812



Estimated hours for the average student

Academic Engagement

Reading online course instructional material at 140 words per minute


Taking quizzes 


Taking the exam


Conducting a directed and independent inspection study performed according to the Standards of Practice, including the development of an inspection report 


Submitting an inspection and writing assignment

Submitting a research and writing assignment 0.5




Studying and reviewing instructional material in preparation for taking quizzes and exam 


Reading the downloaded student course book including taking the quizzes with the book 0.5
Reading, research, and studying related to completing the research and writing assignment 1.0
Studying and preparing for inspection processes according to a Standards of Practice, including capturing and storing digital images with a camera or device, making observations, evaluating conditions, deducing, formulating opinions, communicating observations in written form, attaining competency in performing inspections and using an inspection checklist or software and other inspection tools in producing a report. 10.0



Sub Total


Overall Total

18 hours

1.8 CEU

And, in keeping with InterNACHI's commitment to Continuing Education, this online course is open and free to all members, and can be taken again and again, without limit.
Reminder to members:  InterNACHI's Code of Ethics 1.10 requires that you comply with all government rules and licensing requirements of the jurisdiction where you conduct business.  InterNACHI's courses and Standards generally exceed the Standards of Practice that you are required to abide by locally.