Council updates C407 performance targets and differentiates by climate zone

Oct 27, 2026

The council adopted updated building performance factor and total-site energy target values (blue/green table updates) developed with PNNL modeling and directed staff to include the adjusted numbers in CR103. The changes distinguish targets by climate zone and align modeled prescriptive requirements with performance pathways.

The full story

The Building Code Council approved adjustments to C407 building performance factors and total-site energy targets that differentiate values by climate zone and incorporate updated PNNL modeling results.

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