After initial research, including interviews with stakeholders, the Statewide CASE Team determined that the submeasures below did not meet the Energy Commission’s requirements for market readiness, technical feasibility, cost-effectiveness, or enforceability at the time they were considered. The multifamily high performance envelope submeasures that are included in the 2022 Code Cycle can be seen here: Multifamily High Performance Envelope.
Reduced Thermal Bridging
Mitigate heat transfer through major thermal bridges in a building: wall-roof intersection, wall-floor intersection, wall-fenestration intersection, and wall-exterior projections. The Statewide CASE Team will leverage nonresidential CASE topic on thermal bridging potentially based on ASHRAE 90.1 proposal (addendum AV to 90.1-2016). The Statewide CASE Team anticipates that the new code will apply one of the following three code compliance implementation methods for this new measure.
- Adjust assembly u-factor calculation methods to include thermal-bridging elements.
- Prescribe acceptable details of joints between assemblies or acceptable offsetting insulation for high levels of thermal bridge heat losses.
- Establish use of UA budgets that include the impact of thermal bridging between assemblies.
Measure proposals, supporting documents, and other outside references will be made public as they become available.
Round One Utility-Sponsored Stakeholder Meeting Materials
Give Us Your Feedback
The Statewide CASE Team values input from all stakeholders engaged in the Title 24, Part 6 code change process. We encourage the open exchange of code change comments and concerns.
Use the form above to provide feedback on this measure.