njenergycode.com - NJ Energy Code | Online Resource for Building Professionals

Description: On Sept. 3, 2019, New Jersey adopted new construction codes that include the 2018 IECC.

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On September 3, 2019, New Jersey adopted a new set of Uniform Construction Codes (UCC) that includes the 2018 International Energy Conservation Code (IECC). This replaces the 2015 IECC that was previously in place.

This change will have a moderate impact on residential construction in NJ, improving the energy performance of new and renovated buildings. As shown in the chart below, a house built to the new codes is expected to consume nearly 50% less energy than a house built in 1975 and about 25% less energy than a house built to the 2009 IECC.

These gains (which began with the adoption of the 2015 IECC a few years ago) require that numerous enhanced construction methods be utilized by builders and verified by code officials.

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