Catch mechanical corrections before you submit
Scan an HVAC, plumbing, and Title 24 set before submission and see the corrections your jurisdiction is likely to flag.
Overview
Mechanical plan check corrections cover HVAC design, plumbing systems, Title 24 energy compliance, and ventilation. In California, energy compliance corrections from HERS raters and plan check engineers are among the most common resubmittal triggers — often overlapping with architectural and electrical corrections in the same review.
Common mechanical engineering correction items
- CF-1R / CF-2R energy compliance forms missing or not stamped
- Exhaust fan CFM does not match T-24 calculations
- Combustion air openings not shown for gas appliances (CMC §701)
- Hot water pipe insulation not specified per Title 24 Part 6
- Equipment schedule missing model numbers or capacities
Field data from plan check submissions in California jurisdictions. Codes reference California Building Code (CBC) unless noted.
How Plan Proof catches mechanical engineering corrections
Mechanical corrections often span energy compliance, plumbing, and HVAC. Plan Proof scans the set and forecasts the corrections your jurisdiction is likely to flag across all of it — each finding tied to a sheet and a code or checklist item — so you can clear the predictable ones before you submit.
Run a Plan Proof check — $39