Electrical conduit
Surface mounted raceway (wire molding)
### Surface mounted raceway (wire molding)

 
This type of "decorative" conduit is designed to provide an aesthetically acceptable passageway for wiring without hiding it inside or behind a wall. This is used where additional wiring is required, but where going through a wall would be difficult or require [remodeling](/wiki/Remodeling "Remodeling"). The conduit has an open face with removable cover, secured to the surface, and wire is placed inside. [Plastic](/wiki/Plastic "Plastic") raceway is often used for [telecommunication](/wiki/Telecommunication "Telecommunication") wiring, such as [network](/wiki/Computer_network "Computer network") cables in an older structure, where it is not practical to [drill](/wiki/Drill "Drill") through [concrete block](/wiki/Concrete_block "Concrete block").

Advantages
* Allows adding new wiring to an existing building without removing or cutting holes into the [drywall](/wiki/Drywall "Drywall"), [lath and plaster](/wiki/Lath_and_plaster "Lath and plaster"), concrete, or other wall finish.
* Allows circuits to be easily locatable and accessible for future changes, thus enabling minimum effort upgrades.

Disadvantages
* Appearance may not be acceptable to all observers.

Where can additional wiring be required without going through a wall?