In building construction and official municipal code compliance, four vital types of inspections are commonly required by local authorities: 1. Foundation and excavation inspection, performed before pouring concrete; 2. Framing inspection, checking structural wood or steel supports after walls are erected; 3. Insulation and drywall inspection, verifying thermal energy efficiency; 4. Final building inspection, conducted upon project completion to secure the official certificate of occupancy for safe habitation.
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