Nail Plates for Pipes in Lake Forest Homes: The Small Steel Shield That Keeps a Picture Hook From Becoming a Leak
A nail or drywall screw through a water line is one of the most avoidable leaks there is. What nail plates are, where code calls for them, why remodels in Foothill…
Hang a shelf, install a new baseboard or put in a kitchen backsplash, and a fastener can go straight through a water line hidden in the stud. Sometimes it leaks right away. Sometimes the nail seals the hole for months until it corrodes and water starts running inside the wall. A small steel nail plate is what stops that from happening.
What a nail plate is
A nail plate, also called a protector plate or stud guard, is a flat piece of hardened steel nailed over the face of a stud or joist where a pipe passes through. It sits under the drywall. If someone drives a nail or screw at that spot, the plate stops it before it reaches the pipe.
Where they are required
Plumbing code calls for protection when a pipe runs through a bored hole or notch close to the edge of a stud or joist, generally within about 1 1/4 inches of the face. The plate must be thick enough to resist a nail and extend beyond the pipe. Inspectors check for them during rough-in before walls are closed.
Where they get missed
- Remodels where walls were opened and closed without a permit.
- Older repairs where a plumber replaced one section of pipe and did not add protection.
- Notched studs where the pipe sits almost flush with the face.
- Bottom plates behind baseboards, where trim nails go in low.
How to protect what you have
Before drilling into a wall near a sink, toilet, shower or water heater, use a stud finder that detects metal, and assume pipes run straight up and down from fixtures. Use short screws for shelves near plumbing. If you hit a pipe, leave the nail in place, shut off the water and call for a repair.
Lake Forest homes
Lake Forest has 1970s homes in the original El Toro area and around the Lake Forest Keys, along with 1980s and 1990s homes in Foothill Ranch and Portola Hills. Many have been remodeled more than once, and not every change was inspected. Water comes from Irvine Ranch Water District or El Toro Water District depending on the area.
How we protect lines on a repipe
On a PEX-A repipe we bore holes near the center of framing wherever possible, sleeve the tubing where it passes through wood, and install nail plates wherever lines run close to the face of a stud, joist or plate. The inspector sees them at rough-in before drywall goes back. Work is permitted and inspected through the City of Lake Forest.
Related reading
Planning more work? Read about room addition plumbing or bathroom remodel plumbing. Neighbors can visit Irvine, Laguna Hills and Mission Viejo, or see every city we serve at repipeinc.com.
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Written by Repipe OC · CSLB #1087885 C-36 · 23821 Hillhurst Drive, Laguna Niguel, CA 92677 · (949) 524-2362