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Board hears concerns that changes to whole‑building pathway may complicate ResCheck/ComCheck compliance
Summary
Board members and staff discussed whether changes to R405/C407 will require customized ResCheck/ComCheck tools and whether national labs can produce updates in time for jurisdictions' adoption schedules.
Board members raised concerns that changes to the whole‑building simulated performance pathway (R405 for residential / C407 for commercial references in the draft) could make national compliance tools such as ResCheck and ComCheck incompatible with the draft code unless customized versions are produced.
The issue surfaced during public comment and was discussed at length by board members. Ryan (commenter, ResNet) had flagged that lines added to R405's standard reference design might make ResNet/ResCheck and ComCheck harder to use…
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