Healthy Homes, Part 6: Housing Structure Course

Welcome to InterNACHI's free, online Healthy Homes, Part 6: Housing Structure Course.  This is part 6 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 students the parts that have a bearing on a home's soundness, state of repair, and safety.
Upon successful completion of this course students will be able to:
  • describe the basics of housing structure; 
  • list housing structure terminology;
  • identify types of foundation for houses; 
  • describe the basics of vapor barriers; 
  • identify parts of house framing; 
  • describe roof types; 
  • perform an inspection related to systems and components; 
  • generate observations related to the house structure; and 
  • produce written reports related to observations conducted at a house.

Course Includes:
  • 22 InterNACHI CE credit hours; 
  • 2.2 CEU; 
  • 13,548 words; 
  • 25 quiz questions in 4 quizzes;
  • Inspection and writing assignment; 
  • Research and writing assignment;
  • 20-question final exam; and 
  • Certificate of Completion. 
You will learn the following topics:
  • Foundation
  • What is the foundation?
  • What Material is the foundation made out of?
  • The footing
  • Cracks and holes in the foundation walls
  • Concrete cracks
  • Problems with moisture
  • Vapor barriers
  • Vapor barriers for concrete slab homes
  • Wall and ceiling vapor barriers
  • House framing
  • Foundation sills
  • Flooring systems
  • Studs 
  • Interior walls
  • Stairways
  • Windows
  • Doors
  • Garage doors
  • Exterior house doors
  • Roof framing
  • Roofs
  • Exterior walls and trim
  • Putting it all together

Healthy Homes, Part 6:  Housing Structure Course

Course # 4810



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 1.4
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

22 hours

2.2 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.