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Course Details & Registration Information

HVAC and Duct Leakage: Proper Evaluation and Sealing
Available Classes
Not currently offered.
Description Course Outline Requirements Intended Audience More Details
Intended Audience
Home Builders or Framers, Remodelers, HVAC Technicians, Insulation Installers, General Contractors, Code Officials, and Building Analysts/Auditors
This hands-on course provides a thorough understanding of air handling systems and the associated building envelope components, as well as how to measure existing efficiency and how to identify and implement improvement strategies. The course prepares students for the BPI Infiltration and Duct Leakage Certification exam. It covers the use of the blower door and duct tester, equipment set-up, basic building science, heat transfer modes, and common leakage sources in typical homes. Manometer configurations and mathematical calculations for checking for code compliance are included. On completion students will be able to set up equipment for diagnostic testing and interpret the data. The classroom and labs feature state-of-the-art technology and offer hands-on training with leading industry brands. Students receive a certificate of attendance. NOTE: The BPI Infiltration and Duct Leakage Certification exam is not included in this course, nor is this course required by BPI; however, students who complete this training typically perform better on BPI exams.
Course Objectives
  1. Students will understand the protocols for blower door and duct leakage testing
  2. Students will be able to calculate the ACH50 (air changes per hour) and percentage of duct leakage
  3. Students will be prepared to successfully challenge the Building Performance Institute (BPI) Infiltration and Duct Leakage (IDL) certification field exam (available separately)
Outline of Instruction
  1. General introduction, overview of HVAC and houses
  2. Common issues with HVAC ductwork, good and bad installations/sealing, products that do and don’t work well.
  3. Introduction to duct testing and diagnostic equipment
  4. Duct testing (cont'd), review of basic math for calculations
  5. Review of previous areas of discussion and midterm test
  6. Proper duct sealing and end of class project assignments
  7. Practical application
  8. Final review and additional practice on diagnostic equipment
  9. Final exam and projects due
Contact Hours
Industry Standard, State, or National Certification
Building Performance Institure Inc. (BPI)
Website URL
Certification Learning Outcomes/Requirements
  1. Students will gain the skills needed to evaluate the Heating Ventilation and Air Conditioning (HVAC) units for duct leakage and blower door tests, in compliance with International Energy Conservation Code (IECC) codes for new home construction or existing home remodels.
  2. Upon completion of the course and passing the field examination the student will be eligible to earn the Infiltration and Duct Leakage (IDL) certification, that certifies you can conduct duct leakage tests to the American Society for Testing and Materials (ASTM) ASTM E1554-07 standard and blower door tests to the ASTM E779 standard.
CE to CU Articulation
Text and Supplies Needed
Supplied by Instructor
Clinical Site/Special Facilities
Classroom and Lab
Requirements for Successful Completion of this Course
  1. Attendance 90% or above
  2. Participation
  3. Minimum passing score of 70 percent on exams and final hands on project
Accreditation/Special Approval Requirements
Intended Audience
Home Builders or Framers, Remodelers, HVAC Technicians, Insulation Installers, General Contractors, Code Officials, and Building Analysts/Auditors
Specific Industry or Business Support Needs
Energy Efficient Quality Control Specialist
Energy Auditor
Energy Audit Home Inspector
Energy Auditor Program Support
Wake County Need for Industry Positions
Industry or Job Titles Related to training Outcomes for Employment
  • Energy Efficient Quality Control Specialist
  • Energy Auditor
  • Energy Auditor Program Support
Related Courses
  • Heating and Air Conditioning (HVAC) - AHR-3131A2
  • Heating and Air Conditioning (HVAC) - AHR-3131B2
Course Contact Information
Vocational Training Department