Code question, wall board behind baseboard trim
I need to do some work on an exterior wall, and am planning on pulling the baseboard trim and cutting the wallboard behind it to give me access to the bottom of the wall. By doing this I won't impact the finished part of the wall.
When I nail the trim back on, do I need replace the wallboard down to the floor plate to cover the wall cavity or can I just user spacers along the stud? I think I read somewhere that the wall cavities need to be sealed per fire code?