Romex in foam insulation Home › Forums › Public Discussion › Romex in foam insulation This topic has 0 replies, 1 voice, and was last updated 7 years, 11 months ago by GMW. Viewing 1 post (of 1 total) Author Posts 06-17-15 at 11:59 AM #4139 GMWParticipant Does anyone know of a code change that no longer allows romex or type NM cable in walls that have spray foam insulation installed in them? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In