Running Wire Through Metal Siding

The proper way to run wiring on the exterior wall of a house.

Running wire through metal siding.

The metal opening is 1 4 1 2 inch wider than the 2 5 3 inch conduit allowing weather to infiltrate area. A bushing seals around the cable and protects it from the sharp edges of the siding. Use cable clamps to hold wire. Use wire stripped to strip 1 2 inch of insulation from each individual wire.

Rewiring a house from the outside using conduit. Running wires inside rigid metal conduit rmc is a little more expensive than burying underground feeder cable uf but it saves labor. Fasten the cable with clamps. It also forces water to drip off the cable rather than follow the cable into the wall.

One method is to run individual wires. Using metal conduit means less digging. A loop provides extra length for minor repairs or rerouting later. Cut a separate piece of cable about 6 inches long.

There are two ways to run electrical wiring on the exterior walls of a house or other structure. Step 1 drill a hole through your structure where you will supply your power. To prevent electrical shock properly grounding your electrical system is important especially in a metal building. This is because the top edge of rmc has to be only six inches below the surface of the ground while uf must be buried 12 inches deep deeper in some situations.

Old wiring can present a fire hazard but is extremely expensive and complicated to replace. Remove the sheathing and strip 1 2 inch of insulation from the end of the black wire and white wire. Rather than tear out walls or spend weeks fishing. The metal siding has a electrical conduit penetrating the tin vinyl board and batten siding on the east west north south wall exposure yada yada the main conductors are insulated so we see no concern.

Using these separate 6 inch wires attach the bare copper wire to the green screw on the bottom of the outlet. With an enormous amount of pvc sizes and fittings you can run electrical wire outside and up a tree should you choose to. The national electrical code which is the basis for all local building codes has specific regulations for installing electrical wires so that they are protected from damage.