A residential building permit is issued based on approved plans that include specific structural details for a complex roof truss system. During the rough framing inspection, the inspector observes that the contractor has deviated from these approved plans by using a different truss design, citing it as 'equivalent.' What is the inspector's most appropriate action regarding this deviation?
- ARequire the contractor to provide revised engineering calculations and plans for review and approval by the building official.
- BApprove the installation if the contractor provides a verbal assurance that the new design is equivalent.
- CIssue a stop work order immediately and require removal of the non-compliant trusses.
- DNote the deviation but allow construction to continue, deferring the issue to the final inspection.
Show answer & explanationAnswer & explanation
Correct answer: A. Require the contractor to provide revised engineering calculations and plans for review and approval by the building official.
Any deviation from approved plans, especially for critical structural components, requires formal review and approval. The contractor must submit revised, engineered plans for the alternative design to the building official. The inspector's role is to ensure that proposed alternatives are formally reviewed and approved, not to accept verbal assurances.
Why the other options are wrong
- B. Verbal assurances are insufficient for structural changes; formal documentation and approval are required.
- C. While a stop work order might be necessary if the deviation is immediately unsafe or if the contractor refuses to comply, the initial step for a potentially equivalent alternative is typically to require proper documentation and review.
- D. Deferring critical structural issues to final inspection is unacceptable and unsafe. The issue must be addressed at the rough framing stage.
Deviation from Approved Plans
Any construction work that does not conform to the plans and specifications officially approved by the building official as part of the permit process.
- Requires formal review and re-approval.
- Especially critical for structural elements.
- Inspector must ensure compliance or proper re-approval.
Memory trick: Any change to approved structural plans requires new paperwork and official sign-off.