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Plumbing Rough-In Inspection Certificate

A Plumbing Rough-In Inspection Certificate documents the inspection of plumbing supply and drain/waste/vent (DWV) piping before walls and floors are closed. It verifies proper pipe sizing, materials, slope, venting, and successful water/air pressure testing.

UPC (Uniform Plumbing Code) or IPC (International Plumbing Code), state/local plumbing codesValid: One-off (no expiry)

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Sample Plumbing Rough-In certificate

Sample Plumbing Rough-In Inspection Certificate certificate created with CertBox, showing the professional PDF layout with supply and dwv pipe materials and sizing, water pressure test results, vent system adequacy

Sample Plumbing Rough-In with fictional data. All personal details shown are fake.

What it covers

  • Supply and DWV pipe materials and sizing
  • Water pressure test results
  • Vent system adequacy
  • Cleanout locations
  • Fixture count and layout

Who needs a Plumbing Rough-In?

General contractors
Plumbers
Building inspectors
Homeowners (for records)

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Frequently asked questions about Plumbing Rough-In

What does a plumbing rough-in inspection cover?
The inspector checks all supply and drain piping before it is concealed. This includes pipe sizing, materials, supports, slope on drain lines, vent connections, cleanout access, and a water or air pressure test to verify no leaks.
What is the pressure test requirement?
Requirements vary by code. The UPC typically requires a water test (filling the system with water to the highest vent) or an air test at 5 PSI for 15 minutes. The IPC allows similar methods. Check your local jurisdiction.

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