The 20% Stretch Code, a new set of standards developed by New Buildings Institute (NBI), offers a tool for accelerating the use of more energy efficient designs in new buildings.
Most new buildings are constructed to meet only the minimum energy efficiency requirements in state or local building codes that are often based upon national model codes such as the International Energy Conservation Code and ASHRAE 90.1.The stretch code provides a way for localities to move ahead more quickly with greener standards than they would by simply adopting national building codes.
The adoption of national building codes by states can be a slow, erratic process. Some states are still using codes that are up to three development cycles behind the most recent codes, representing design and construction practices from 2009. Stretch codes can also be adopted as voluntary codes or policies that can be fostered by devising incentives for designers and builders to use them.
As of October 2017, 214 municipalities have adopted the stretch code.
Related Stories
Codes and Standards | Apr 20, 2021
U.S. electric grid is halfway to zero carbon
Other sectors including buildings lag power industry.
Codes and Standards | Apr 19, 2021
Failed landmark preservation effort in Chicago provides lessons for planners
Gentrification fears heightened among Pilsen neighborhood residents doomed ambitious preservation plan.
Codes and Standards | Apr 14, 2021
New Phase 1 Environmental Site Assessment standard debuts in 2021
Will affect 250,000 commercial real estate deals a year.
Codes and Standards | Apr 13, 2021
British Columbia moves to accelerate mass timber construction
Province funds demonstration projects as part of economic recovery.
Codes and Standards | Apr 12, 2021
WoodWorks and Think Wood release first Mass Timber Design Manual
Interactive collection of information on mass timber products, design best practices, taller wood construction and sustainability.
Codes and Standards | Apr 8, 2021
Sensors used in tunable lighting systems found to have high reliability
DOE study investigated items used to control lumen depreciation, chromaticity shifts, and changes in drivers.
Codes and Standards | Apr 7, 2021
Red tape ruined the U.K.’s home retrofit program
Lessons learned could help US avoid that fate.
Codes and Standards | Apr 6, 2021
Lendlease achieves net-zero carbon in Boston, Chicago multifamily portfolio
New projects in New York, Los Angeles on track to reach goal.
Codes and Standards | Apr 5, 2021
Specification for sliding door, lift and slide roller assemblies updated
Addresses market trend toward heavy sliding doors.
Codes and Standards | Apr 5, 2021
Construction employment rebounds in March following February drop
Rising costs, supply-chain woes, and cancellations threaten outlook.