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**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


NC Electrical License Eligibility Requirements Have Changed

Effective October, 2018 the exam eligibility requirements for all NC Electrical Licenses have been reduced so click here to visit the Electrical Board’s site to see if you now qualify for the Limited, Intermediate or Unlimited exams.

Examination applicants must meet the following requirements for the specified license classifications:

1) Limited classification. An applicant must have at least two years of experience,

2) Intermediate classification. An applicant must have at least four years of experience,

3) Unlimited classification. An applicant must: A) have at least five years of experience, as defined in Rule .0202 of this Section, of which at least four years shall be primary experience.

4) SP-PH plumbing and heating classification. An applicant must have at least two years of experience, of which at least one year shall be primary experience. The balance of experience may be primary, secondary or both.

To read more, refer to page 30 of the Electrical Board’s Exam Information Handbook for details.

Hope this information was helpful, see you in class soon!

SP-PH Electrical License Eligibility Requirements Have Changed

You’re now eligible to test for the Limited Electrical SP-PH License with two years of field experience in HVAC or plumbing! Before 2019, you needed three years to qualify.

Next class date is Friday, July 26th in Raleigh at the Trane DSO, click here to register for the one-day class, we’ll begin preparing your license application for you.  Only reference book required for the class and 40-question exam is the 2017 National Electrical Code.