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Sometime the heating or cooling comfort issues your customers are experiencing are not a result of HVAC equipment or system problems. In this module David Richardson shows you how to go beyond the system and diagnose problems by measuring insulation R-value. You’ll learn to calculate R-value using the included R-Value Estimation Chart. You’ll also learn how to determine heat loss or gain through any wall or other surface using the included Heat Loss/Heat Gain Estimation Chart. NCI’s exclusive R-Value Procedure is also included.

Here, click on “Go to the course” to be redirected to the official NCI site. Once you have completed the entire course, come back here and click below where it says “Next”.

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