Structural Observation (CBC 1704.6)
This is the visual observation of a building’s structure by a registered design professional, ensuring it aligns with the approved construction documents. It is carried out by the Structural Engineer of Record (SER) or another licensed engineer approved by the SER.
Special Inspection (CBC 1704.2)
This involves inspections carried out by third-party private entities to ensure construction complies with the building code and approved documents. These inspections require specific expertise and do not replace other mandatory inspections by local, state, or federal entities.
Why Does Section 1704.2 of CBC Require Special Inspectors to be Hired by the Owner?
This requirement ensures Special Inspectors are loyal to the owner rather than the contractor, preventing any conflict of interest. For example, if a Special Inspector identifies issues that need costly corrections, a contractor might be tempted to avoid rehiring that inspector in the future.
Using a Contractor-Recommended Special Inspector
It’s generally not advisable to use a Special Inspector recommended by your contractor due to potential conflicts of interest. Instead, you can search for “deputy special inspectors” online, ensuring they are licensed and approved by your local municipality.
Stages or Portions of a Project Requiring Special Inspection and Structural Observation
The approved plans detail the necessary stages and portions for both Special Inspections and Structural Observations. The owner or their representative must sign these plans to declare the Structural Observer and acknowledge their obligation to ensure the construction complies with the approved documents.
If you have more specific questions please contact us.