Hello, I'm putting cedar siding on my house and have been putting Tyvek houswrap over the house prior to the siding. Have come to the attached garage. The garage is only attached to the house by a total area of about 7 x 10 feet. Garage is unheated with no insulation, just studs. Don't plan on heating it. Question: Do I need to continue with the tyvek on the garage? The previous siding I'm taking off is 4 x 8 sheets of what i would call "plywood siding." The wall sheeting under the old siding is 5/8 inch plywood. There was no moisture barrier between the two, just plywood against plywood.