Portland, Maine. In remodeling I have gutted the interior of a 1950 cape cod.The electrical has been removed and new going in. All boxes will be in interior walls only and there will be no ceiling light fixtures. Two questions. Can I run wires in floor beam spaces (just above 1st floor cieling drywall) both perpendicular and horizontal to the bays and meet code without drilling holes in the floor beams? I have to add CO and fire alarms. Can these be put at the top edge of the wall or do they have to be on the ceiling?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part