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Duct Sealing in Large Buildings

COURSE NO: M02-016
Duct Sealing in Large Buildings
Course Highlights

This online engineering PDH course describes the importance of duct sealing with respect to saving energy in air delivery systems in commercial buildings.  This course also explains that the duct sealing method analyzed in this report is technically viable; however, more work is needed to develop a practical cost effective methodology for this process.


Considerable research has been conducted on the leakage levels of various types of ducts and duct fittings. Electricity energy savings potential by eliminating air leakage from ducts in large commercial buildings is on the order of 10 kWh/m2 per year.  The research discussed in this paper is based on two large commercial buildings, using a new technology that simultaneously seals duct leaks and measures effective leakage area of ducts.


This 2 PDH online course is applicable to mechanical engineers who design duct systems and write specifications for ductwork sealing in large commercial buildings.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • The importance of duct sealing to safe energy
  • The practicality of using aerosol based duct sealants in commercial systems
  • Issues related to researching duct sealing methods
  • Effective leakage area evaluation criteria
  • Aerosol concentration measurements
Course Document

In this professional engineering CEU course, you need to review the material contained in LBNL Publication, "Duct Sealing in Large Commercial Buildings with Aerosolized Sealant Particles", LBNL 42414.

To view, print and study the course document, please click on the following link(s):
Duct Sealing in Large Buildings (410 KB)
Course Quiz
Once you complete your review, you will need to take a multiple-choice quiz consisting of ten (10) questions to earn 2 PDH credits. The quiz will be based on this publication.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: