Where are you Ranger state wise. How hot dose it get their. I decided to go with the insulation from eastwood. The roof and hood insulation. Figured if it will hold up under the hood then it should stay on the roof. Russ.
I'm in northern Ill (about half way between Chicago and Rockford). Last week it got up to the mid to upper 90's.
The guy who did the headliner for me said he never uses any insulation, but I brought it because it had insulation from the factory and I had to remove some in order to tape up the headliner (it tore loose from dry rot while on the highway going to the Power Tour). He said since I supplied it, he'd install it. So far it's been fine, but then again, if I'm driving it, all the windows are down, so I don't know if it is really necessary or not.