Garage fire wall / separation wall between the house and an attached garage is very often mistreated by the home owners.
I’m assuming that they are simply unaware of the fire safety requirements and how critical it might be to gain those extra minutes that garage fire wall should provide in case of fire.
As always. check your local jurisdiction requirements, because they might exceed the IRC (International Building Code).
#1. Garage fire wall / separation wall – materials used on the garage side of walls and ceiling common to the house must meet certain requirements in order to slow [...]