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DET - Duct & Envelope Tightness Training

This two-day course is designed to introduce the skills necessary to become a Duct and Envelope Tightness (DET) Verifier, certified to perform the diagnostic testing required for new homes by the 2009 IRC/IECC with Alabama amendments.

Online math course must be completed prior to attending. Details given at registration.

To register, call 1-800-634-0154.

Did You Know?

  • 2009 Alabama Energy & Residential Code went into effect October 1, 2012. AERC Manual
  • Duct tightness testing is required on all new ductwork and R-8 insulation for all ducts in attics as of October 1, 2016.

  • Supplemental heat control for heat pumps is required below balance point
  • Our HVAC Training Center offers DET certification training.  
  • An online math course must be completed prior to attending the DET certification class.
  • Cost of DET Training is $665.
  • 76% or above grade is required on a practical exam for certification.