Core QC Checkpoints (English)

# Checkpoint Primary Risk Action Item
1 Nailing & Fastening Structural Instability Check for "shiners" and irregular nail spacing in framing.
2 Wet Room Thresholds Catastrophic Leaks Mandatory 24-hour flood test before any tile is laid.
3 Service Penetrations Fire & Draft Risk Verify orange fire-rated foam in all wall/floor penetrations.
4 Window Flashing Internal Mold Ensure "shingle-fashion" (overlap) layered installation.
5 Duct Sealing & HVAC High Energy Bills Mastic seal on all HVAC joints; check for air leaks.
6 External Cladding Facade Detachment Check for mechanical anchors vs simple adhesive.
7 Concrete Curing Slab Cracking Wet-curing protocols; check for early shrinkage cracks.
8 Electrical Rough-in Fire / Loose Wiring Verify secure junction boxes and stapled wires (every 4.5 ft).
9 Insulation Continuity Cold Spots / Condensation Zero gaps in corners and around utility portals.
10 Plumb & Level Walls Finish Quality Issues Check framing verticality before drywall closes.
11 Floor Leveling Uneven Surface / Squeaks Laser-check slab leveling before hardwood/tile install.
12 Roof Ventilation Shingle Overheating Verify ridge/soffit vents are clear of obstructions.

QC Inspection Checklist

Sample Inspection Items (copy to add more)