I'm going to need access to the attic area of my house to run some cables. The current access is in a closet on the opposite end of the house; getting up there is a bit of a pain, and then I would have to traverse the length of the house by hopping from truss to truss. I'm thinking about adding an attic access in the garage to make things easier. Is there any reason (building code, security, ???) not to add an attic access in the garage?