How do I meet the residential stretch code for new homes?
For new residential homes including multi-family homes of 3 stories or less, builders essentially follow the Energy Star for Homes program requirement in Massachusetts, and are required to show that each unit meets or is below a maximum Home Energy Rating System (HERS) index score. For new homes greater than 3,000 square feet in size the maximum HERS score is 65 (Energy Star tier 2), for smaller homes less than 3,000 square feet in size the maximum HERS score is 70. In addition to the HERS score the homes must be inspected using the Energy Star ‘thermal bypass checklist’ and similar to the new base code may require duct testing. These inspections ensure that the home is well air sealed, while the HERS rating ensures that the home is designed to be well insulated with efficient heating and cooling and lighting – all measures that save energy and reduce utility bills.
