Discussion Starter · #1 ·
I've got a question for you good people. I am building a room in my attic. I live in hot south alabama. It gets scorching hot upstairs. I am wanting to use r19 as insulation. The walls in the room will be 2x4's. All walls with the exception of 1 will be unfinished on the outside. My thought process is to put the insulation in the 2x4 cavity and the outside of the wall will have the overflow. The one wall will be sistered up to another wall that is a 2x4 wall so the r19 will have no problem in there. Is this OK to do? I want the best insulation in the room possible. Thanks for your time!