News Flash

Posted on: December 16, 2022

CHANGES TO THE BASE & STRETCH ENERGY CODES EFFECTIVE 1/1/2023

Base Code: The 2021 IECC Energy Conservation Code begins 1/1/2023
Stretch Energy Code is now 225 CMR Chapter 22
Minimum HERS Rating for low rise residential construction = 52
Mechanical air HRV OR ERV is now required. Exhaust only option is over.

Building Department