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Rigid foam insulation electrical wiring.
Other options such as spray foam or loose insulation are also a possibility but in all cases the insulation needs to be installed after the wiring is done.
All was code compliant so i am reasonably fluent in household electrical wiring.
With my friend s basement i plan to use grooved 1 or 1 5 rigid foam board.
Standard one half inch sheet rock will follow.
Push the insulation batt back into the wall with the cut line aligned with the electrical wire.
After the wiring is in place the insulation can be laid in.
Unfold the paper tabs running along the length of the batt.
Another aspect of spray foam insulation with respect to electrical wiring is its capacity to block moisture a definite advantage with electricity.
I m thinking about adding 2 inches of rigid foam over the studs leaving the fiberglass in place.
If your home was wired using a now obsolete methodcalled knob and tube wiring the national electric code forbids the installationof loose rolled or foam in place insulation if the insulation would surroundthe wires and prevent heat dissipation from the electrical conductors to a freeair space.
With this approach my big question is.
I will secure the foam board on to the poured concrete slab walls with 1x3 furring strips via a powder actuated gun and drive pins.
As it is industry groups have conducted several decades of extensive testing finding that spray foam insulation does not affect electrical wiring when safely applied and installed.
They re not knob and tube.
Is it safe to encase them with insulation.
What do i do about the wiring in those wall cavities.
Mask the front of all electrical boxes panels and equipment to avoid foam migration into unwanted areas.
This is for fire safety.