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The NCDOI’s Residential Ad Hoc Committee has introduced a submittal that will keep Chapter 11 (Energy Code) and Chapters 12 – 23 (Mechanical Code) and Chapter 24 (Fuel Gas Code) the same as the 2018 version of the NC Residential Code.

The reason for this submittal?

The proposed 2024 Energy Code included changes that would increase the new home cost to a consumer by over $20,000.

Our monthly newsletter will detail any decisions regarding this submittal and how it will affect NC License Exams based on the 2018 NC Residential Code.


NC License Exams are currently based on the 2018 NC Building Codes.

Many of you have been asking us the big codebook question, when will we need the new NC codebooks?”

So we checked with NCDOI Mechanical and Fuel Gas Code -Engineering Division, the dates they provided are:

  • the NC Building Code adoption process is currently ongoing
  • the 2024 NC Codes implementation date should be January 1st, 2025
  • the 2024 codes should become available by July, 2024 at the latest

**INDUSTRY UPDATE** North Carolina Licensed HVAC Contractors: House Bill 243

New Law Temporarily Lowers R-Values for Duct Insulation to R-4.2

Governor Roy Cooper signed this legislation yesterday, March 17, 2022

House Bill 243 – Duct Notice 3-17-2022


This new law temporarily changes the Commercial and Residential insulation R-value for ducts installed in ventilated and nonventilated non-conditioned spaces (crawlspaces and attics). 

Based on this legislation, contractors can install ducts in Residential ventilated and non-ventilated unconditioned spaces (crawlspaces and attics) with a minimum of R-4.2 insulation. This law will allow for reduced duct insulations values for a period of two years and is now in effect.

  • Any changes in duct insulation values must be included in your load calculation
  • If you are questioned by an inspection department in reference to the duct R-values, please refer them to House Bill 243
  • That actual language for this legislation can be viewed at the following link:  https://www.ncleg.gov/BillLookUp/2021/h243
  • Once you click on the link, you will need to click on “SL 2022-6” in the tool bar on the left side of the webpage. The duct work language is on pages 46 – 47
  • For changes to commercial projects please see the specifics in this legislation

COVID UPDATE:  Masks are back

 Updated Wake County Guidance for Businesses:  

Starting Friday, August 13th at 5:00 pm, Wake County issued a mask mandate.  We ask you help us adhere to guidelines by wearing your mask indoors during classes until the mandate is lifted.

Everyone, including those who have already gotten their vaccination, will be required to wear masks indoors in public, city officials said. That includes restaurants, bars, shops and government buildings.

Thank you to everyone for supporting The Technical Training Institute. We could not get through this without your loyal support and we DEEPLY VALUE our community and our students.

                                                               we will get through this