I work for a manufacturer of mobile medical trailers. We are working on incorporating a new "snap lock" design for assembling our trailer walls. The construction of the walls makes coventional means of securing conduit boxes for light switches,outlets and junction boxes impractical. We would like to use a tape or adhesive to secure the electrical boxes to the trailer walls. Could not really find anything in the NEC for or against this type on installation. Looking for help to see if this is ok to do. Thanks.