Applying the insulation above the Crafter / MAN tge headliner. Part 2

Part 2 of 3 . Insulating the area above the Crafter / MAN tge cab headliner in order to not only insulate properly, but to prevent the problem caused by condensation when left unchecked. I show you how to clean and prepare the area for a 2 stage insulation process that I have used in all of our conversions for many years.