Can Romex be run in an unfinished storage area above the garage? There are stairs leading up to the sotrage area ant the print shows fours outlets and a prewire for a fan/light and it also lists the area as an unfinished storage area. The ceiling is only 7'6'' at the peak and like 4'6" at the wall. Can I run Romex through the walls and if so is there any special installation requirements?