In a house I inspected recently when I inspected the attic (from the only access I could find - in the garage, it looked like this access was to the whole attic above the garage and the house. I thought that the firewall between the garage and the house was supposed to continue through the attic to prevent (or slow down) the spread of fire that could start in the garage.
The pictures I have are not very good quality but was thinking that if I am right the picture quality is not that relevant to the answer of my question.
Here is a picture of the garage ceiling with the attic access (top right). Note there is a jut in the wall to the left (of about 3-4 feet) where the the HVAC & water heater are. To the left of the HVAC on the other side of this wall is the kitchen.
and here is the best shot I have of the attic in that direction. It seemed like the attic extended farther than where the firewall (if I’m right) should have extended up through the attic.
This next picture seemed to go into the attic space above the house to the right.
I know the drywall above the garage is to be 5/8" as a firebreak and I was wondering if they did all the ceilings with 5/8" if that would satisfy this requirement in some areas.
The house was only 10 years old.
If I am right that the firewall should extend through the attic are there any exceptions to this or any way of getting around this?