Under Construction Phase Inspections
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References
- Document for Alaska - [1]
- Inspection Descriptions Florida - [2]
- Guidelines Georgia - [3]
- South Carolina - [4]
Specifics
Site Plan
- this is the first inspection
Grading Inspection
- This is inspected in Georgia.
Foundation
- Slab inspection happens before pouring
- Plumbing under-slab may be inspected prior to covering
Complete Rough
- Rough-in inspections include plumbing, electrical, and framing:
- Includes house wrap inspection?
- DO NOT INSULATE EXCEPT CONCEALED WALLS, SUCH AS BEHIND SHOWERS AND CANTILEVERED FLOORS
- Is it ok to insulate behind the stairway?
- Includes caulking inspection. Caulking may mean firestop for electrical, plumbing, and other penetrations
- Does it include interior doors?
- Fire blocking shall be in place. Use ASTM E136 caulk and other approved material to seal [7]
Electrical
- includes wiring and breakers
- Includes ground conductor
- Includes all enclosures - breaker boxes, outlet boxes
- Switches, receptacles and fixtures should not be installed at the rough-in.
- If possible, permanent power inspection may be scheduled at rough-in. [8]
- The panel box needs to have the grounds and neutrals made up. No breakers are required. Service entrance must be run.
- Unless the meter base and the service panel are located back-to-back or next to adjacent stud cavity, a four wire system with an exterior service disconnect is required. The sub-panel must isolate neutrals from the grounds. (NEC 230.70a and 230.91a). I pull up service disconnect at [9]
- Note distinction between service disconnect and meter disconnect. Service disconnect is main breaker on breaker box. Meter disconnect is before the meter. The meter is before the house breaker panel.
Plumbing and Mechanical
- One piece shower tubs are installed as they are too big to do later and they often 'change size' and thus must be installed with the framing to match [10]
- Prior to any enclosure, plumbing is inspected
- Includes water, drain, waste, and vents
- Sinks/showers etc not installed yet.
- Water supply system shall be tested and proven to be water tight under a water pressure test not less than the working pressure system (40 lbs) or by an air test not less than 50 psi. (100 for pex). (P2503.6).
Mechanical
- Condensate and HVAC line sets should be installed and fire-stopped. (M1411, M1412).
- M1411.6 Insulation of Refrigerant Piping - Piping and fittings for refrigerant vapor (suction) lines shall be insulated with insulation having a thermal resistivity of not less than R-4 and having external surface permeance not exceeding 0.05 perm [2.87 ng/(s • m2 • Pa)] when tested in accordance with ASTM E 96.
- Clothes dryer exhaust shall be roughed-in. Maximum length shall not exceed 25 feet. (G2439.5.1)
- Includes HVAC vents; range, dryer and bathroom vents; water heater and venting; others. If water heater is not fuel-fired,
- Bathroom exhaust fans must be installed in every bathroom and water closet and duct run to outside air.
Framing
- Includes both interior and exterior walls, load bearing or not. Inspection is done after all rough-in plumbing and electrical, and ducting is in place.
- Stair headroom must be 6'8" [11]
Insulation
- This follows rough-in - and is prior to walls being covered
Final Inspection
Schedule this when the building is ready for occupancy. May include:
- Building Final - such as wall covering
- Landscape Final - erosion so grass is growing etc?
- Electrical Final -
- Plumbing Final
- Mechanical Final
- Gas Final
Other
- P2503.4 Building Sewer Testing - The building sewer shall be tested by insertion of a test plug at the point of connection with the public sewer, filling the building sewer with water and pressurizing the sewer to not less than a 10-foot (3048 mm) head of water. The test pressure shall not decrease during a period of not less than 15 minutes.