Sealing the "A" Pillars
While insulating the cap on my Thor Ace 30.1, I noticed the opening inside the cap that leads down into the front grill area. This area allows hot or cold air to run up to the inside of the ceiling up front. At first I was going to stuff insulation in this area inside the grill but was too hard to get to. I removed the access panels again to the bed raising mechanism and stuffed fiberglass insulation in the top of the pillar. This has to help keep hot and cold air from being forced inside the coach. If my wife would drive I was going to lay up top and see just how much air was coming in but she still isn't comfortable yet.