Resources and Best Practices

Code Guides ,Best Practices, and Program Forms

For more detailed building science technical information, see the building science resources.

Utility Program Rebates Documents

Massachusetts - 2023 Mass Save forms:

Connecticut - 2023 CT RNC forms:

Energize CT RNC Application - 2023

Resources

Ventilation guidance - code requirements - HRV and ERV recommendations and configuration options
Slab Edge Insulation - best practices and strategies
Code Guide - 2023 IECC Stretch Code - New Construction (coming soon)
Code Guide - 2023 IECC Stretch Code - Major renovation & Additions (coming soon)
DOE Zero Energy Ready Home Certification (ZERH) - to qualify for the 45L tax credit