I have framed in and sheathed my 24 x 20 carport to make a garage. The carport has 5/8 sheet rock on the ceiling, the wall separating the carport from the house is currently sheathed with faux wood grain exterior hardboard panels of about 1/2" thickness (looks like thick masonite). First question is will I need to remove the hardboard panels and replace with sheetrock for the firebarrier( I live in Tempe, AZ)?
Also, the door leading from the carport into the house opens into the laundry room. On the interior of the common wall there is a two gang switch to the left of the door for lighting. Second question: Am I permitted to have a penetration in the fire barrier on the garage side for switch boxes at this location as well, or must I wire everything on the interior side, thus keeping the fire barrier intact?
I do have a permit pulled, and just couldn't remember what they had said about the panneling. As you suggested, I'll likely pull it off so that I can more easily access the interior of that wall for electrical. Technically, I think I'm also supposed to wall off the garage attic from the main house attic with drywall. I plan on having them out for the framing and electrical rough-in inspection pretty soon.