Southwire's Romex SIMpull Type NM-B (non-metallic sheathed cable) maybe used for both exposed and concealed work in normally dry locations at temperatures not to exceed 90 degrees celsius (with ampacity limited to that for 60 degrees celsius conductors) as specified in the National electrical code.
Placed where space is available and free of excess moisture and dampness
NM-B cable may be run in air voids of masonry block or tile walls where such walls are not wet or damp locations
NM-B cable is primarily used in residential wiring as branch circuits for outlets, switches, and other loads