How to Install Electrical Wiring in Concrete Foam Forms

Insulated concrete forms (ICFs) are two rigid foam slats that run parallel to each other. Metal or plastic ties rest between the two foam slats. You can install the concrete foam forms with matching foam blocks to create a hollow wall. Pour concrete into the the hollow cavity to make a concrete wall featuring foam insulation. To install electrical and low voltage wires in the concrete foam forms, use a heated grooving tool. The tool features a heated coil that slices through the foam to create space for wiring.

Chalk box
Heated grooving tool
Electrical wire

Instructions

- 1
  Inspect the foam forms and locate the furring strips that are imbedded inside. Lay out the paths of wiring above or below the furring strips using a chalk box to create straight snapped lines.
- 2
  Plug the foam grooving tool in and squeeze its power trigger. Sink the tool's heated coil into the foam at one end of a snapped line and work your way toward the opposite end.
- 3
  Pull the heated coil out of the foam and release the tool's power trigger. Pull the sliver of cut foam out from the wall to reveal a slot for wiring.
- 4
  Insert electrical wiring into the wall, attaching its ends to any receptacle boxes or outlets throughout the room.

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