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Thread: sealant

  1. #1

    Smile sealant

    When exiting a small drilled hole in the stucco of a house for rear entry into an outlet box, must that small hole be filled with foam or some such material even though I intend to apply caulking around the entire box where it meets the wall? Thanx as always.

  2. #2
    Join Date
    Dec 2003
    Kent, WA


    Don't think the electrical code requires it, but some other code (fire, energy, etc) may. If it was a raceway (conduit) it should be sealed if one end is inside and the other is outside.

    What kind of cable is this (power, low voltage,...)? Is there a cable clamp on the box to secure it?
    Kent, WA

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