2.3 Inspection Scheduling & Coordination (2021 IBC Section 110)

2.3 Inspection Scheduling & Coordination (2021 IBC Section 110)

Processing Inspection Requests

The issuance of a permit is only the beginning of the construction phase. To ensure that the building is actually constructed according to the approved plans and the 2021 International Building Code (IBC), mandatory inspections are required at various stages.

According to 2021 IBC Section 110.1, construction or work for which a permit is required shall be subject to inspection by the building official, and such construction or work shall remain accessible and exposed for inspection purposes until approved.

It is the duty of the permit applicant to cause the work to remain accessible and exposed for inspection purposes. Neither the building official nor the jurisdiction shall be liable for the expense entailed in the removal or replacement of any material required to allow inspection. If a contractor installs drywall over electrical wiring before the rough electrical inspection has passed, the inspector has the full authority to order the drywall removed at the contractor's expense so the wiring can be examined.

Permit technicians are usually responsible for processing inspection requests. It is critical to ensure the permit is active, no holds (like unpaid fees or pending zoning reviews under the 2021 IZC) exist, and that the request provides sufficient advance notice. Most jurisdictions require requests to be made at least 24 hours or one business day in advance.

Organizing Routes and Inspector Availability

Efficiently routing inspections is a complex logistical task. Permit technicians or inspection coordinators must organize daily routes based on several factors:

1. Geographic Efficiency: Grouping inspections by neighborhood or zip code to minimize inspector drive time.
2. Discipline matching: Ensuring the inspector assigned is certified for the type of inspection requested (e.g., sending an electrical inspector for a commercial service panel upgrade).
3. Inspector Availability: Accounting for sick leave, training days, and meetings.
4. Project Sequencing: Recognizing that some inspections must follow others. For instance, a framing inspection cannot occur until the rough plumbing, mechanical, and electrical inspections have passed.

Verifying Special Inspection Requirements

The 2021 IBC recognizes that some construction elements are too complex or specialized for standard building inspectors to evaluate during brief site visits. Therefore, 2021 IBC Chapter 17 mandates "Special Inspections."

Special inspections are required for critical structural elements like high-strength concrete placement, structural steel welding, deep foundation systems, and seismic resistance systems. These inspections must be performed by approved agencies or special inspectors hired by the owner (not the contractor). The permit technician plays a vital role here by tracking these requirements and ensuring that the final special inspection reports are submitted, reviewed, and approved by the building official before a Certificate of Occupancy can be issued.

Standard Inspections in Chronological Order

The 2021 IBC Section 110.3 outlines the required standard inspections. While the exact sequence can vary by project, a typical new commercial or residential build follows this chronological order:

1. Footing and Foundation Inspection: Made after excavations for footings are complete and any required reinforcing steel is in place. For concrete foundations, any required forms shall be in place prior to inspection.
2. Concrete Slab and Under-Floor Inspection: Made after in-slab or under-floor reinforcing steel and building service equipment, conduit, piping accessories and other ancillary equipment items are in place, but before any concrete is placed or floor sheathing installed.
3. Lowest Floor Elevation: In flood hazard areas, upon placement of the lowest floor, including the basement, and prior to further vertical construction, the elevation certification must be submitted to the building official.
4. Rough-In Trades: Inspections for rough plumbing, mechanical (HVAC ductwork), and electrical systems. These must pass before framing can be covered.
5. Framing Inspection: Made after the roof deck or sheathing, all framing, fire-blocking, and bracing are in place and pipes, chimneys, and vents to be concealed are complete and the rough electrical, plumbing, heating wires, pipes, and ducts are approved.
6. Lath and Gypsum Board Inspection: Made after lathing and gypsum board, interior and exterior, is in place, but before any plastering is applied or gypsum board joints and fasteners are taped and finished.
7. Fire- and Smoke-Resistant Penetrations: Protection of joints and penetrations in fire-resistance-rated assemblies must not be concealed from view until inspected and approved.
8. Energy Efficiency Inspections: Inspections to determine compliance with the energy code, including envelope insulation R-values, fenestration U-values, and duct sealing.
9. Final Inspection: Made after all work required by the building permit is completed and the structure is ready for occupancy.