Roughing In

Definition

Roughing in is the act of preparing a surface by applying tar paper and metal lath (or wire mesh). In plumbing and electrical, it refers to the pre-wiring or pre-piping of a building before the finished walls, fixtures, and devices are installed.

Purpose

The purpose of roughing in is to lay the groundwork for final installations in construction, ensuring that plumbing, electrical, and surface preparations are correctly placed and ready for final finishing.

Examples of Use

• Plumbers rough in pipes for water supply and drainage systems before walls are closed up.
• Electricians rough in wiring, installing electrical boxes and conduit before drywall is applied.
• Builders apply tar paper and metal lath to surfaces in preparation for plastering or stucco application.

Related Terms

• Pre-Wiring: The installation of electrical wiring before the final wall coverings are installed.
• Pre-Piping: The installation of plumbing pipes before the walls are finished.
• Metal Lath: A mesh material used to support plaster or stucco on walls.

Notes

Roughing in is a critical phase in construction, requiring precise planning and execution to ensure that all systems are correctly positioned for final installation and finishing.